21150990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:92

約数の個数: 192

約数和(自身を含む): 70225920

約数和(自身を除く): 49074930

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 31, 35, 38, 42, 45, 54, 57, 62, 63, 70, 90, 93, 95, 105, 114, 126, 133, 135, 155, 171, 186, 189, 190, 210, 217, 266, 270, 279, 285, 310, 315, 342, 361, 378, 399, 434, 465, 513, 558, 570, 589, 630, 651, 665, 722, 798, 837, 855, 930, 945, 1026, 1083, 1085, 1178, 1197, 1302, 1330, 1395, 1674, 1710, 1767, 1805, 1890, 1953, 1995, 2166, 2170, 2394, 2527, 2565, 2790, 2945, 3249, 3255, 3534, 3591, 3610, 3906, 3990, 4123, 4185, 5054, 5130, 5301, 5415, 5859, 5890, 5985, 6498, 6510, 7182, 7581, 8246, 8370, 8835, 9747, 9765, 10602, 10830, 11191, 11718, 11970, 12369, 12635, 15162, 15903, 16245, 17670, 17955, 19494, 19530, 20615, 22382, 22743, 24738, 25270, 26505, 29295, 31806, 32490, 33573, 35910, 37107, 37905, 41230, 45486, 48735, 53010, 55955, 58590, 61845, 67146, 68229, 74214, 75810, 78337, 79515, 97470, 100719, 111321, 111910, 113715, 123690, 136458, 156674, 159030, 167865, 185535, 201438, 222642, 227430, 235011, 302157, 335730, 341145, 371070, 391685, 470022, 503595, 556605, 604314, 682290, 705033, 783370, 1007190, 1113210, 1175055, 1410066, 1510785, 2115099, 2350110, 3021570, 3525165, 4230198, 7050330, 10575495, 21150990]

約数ペア:

[(1, 21150990), (2, 10575495), (3, 7050330), (5, 4230198), (6, 3525165), (7, 3021570), (9, 2350110), (10, 2115099), (14, 1510785), (15, 1410066), (18, 1175055), (19, 1113210), (21, 1007190), (27, 783370), (30, 705033), (31, 682290), (35, 604314), (38, 556605), (42, 503595), (45, 470022), (54, 391685), (57, 371070), (62, 341145), (63, 335730), (70, 302157), (90, 235011), (93, 227430), (95, 222642), (105, 201438), (114, 185535), (126, 167865), (133, 159030), (135, 156674), (155, 136458), (171, 123690), (186, 113715), (189, 111910), (190, 111321), (210, 100719), (217, 97470), (266, 79515), (270, 78337), (279, 75810), (285, 74214), (310, 68229), (315, 67146), (342, 61845), (361, 58590), (378, 55955), (399, 53010), (434, 48735), (465, 45486), (513, 41230), (558, 37905), (570, 37107), (589, 35910), (630, 33573), (651, 32490), (665, 31806), (722, 29295), (798, 26505), (837, 25270), (855, 24738), (930, 22743), (945, 22382), (1026, 20615), (1083, 19530), (1085, 19494), (1178, 17955), (1197, 17670), (1302, 16245), (1330, 15903), (1395, 15162), (1674, 12635), (1710, 12369), (1767, 11970), (1805, 11718), (1890, 11191), (1953, 10830), (1995, 10602), (2166, 9765), (2170, 9747), (2394, 8835), (2527, 8370), (2565, 8246), (2790, 7581), (2945, 7182), (3249, 6510), (3255, 6498), (3534, 5985), (3591, 5890), (3610, 5859), (3906, 5415), (3990, 5301), (4123, 5130), (4185, 5054)]