21385350

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:132

約数の個数: 192

約数和(自身を含む): 70471680

約数和(自身を除く): 49086330

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 31, 35, 42, 45, 50, 54, 62, 63, 70, 73, 75, 90, 93, 105, 126, 135, 146, 150, 155, 175, 186, 189, 210, 217, 219, 225, 270, 279, 310, 315, 350, 365, 378, 434, 438, 450, 465, 511, 525, 558, 630, 651, 657, 675, 730, 775, 837, 930, 945, 1022, 1050, 1085, 1095, 1302, 1314, 1350, 1395, 1533, 1550, 1575, 1674, 1825, 1890, 1953, 1971, 2170, 2190, 2263, 2325, 2555, 2790, 3066, 3150, 3255, 3285, 3650, 3906, 3942, 4185, 4526, 4599, 4650, 4725, 5110, 5425, 5475, 5859, 6510, 6570, 6789, 6975, 7665, 8370, 9198, 9450, 9765, 9855, 10850, 10950, 11315, 11718, 12775, 13578, 13797, 13950, 15330, 15841, 16275, 16425, 19530, 19710, 20367, 20925, 22630, 22995, 25550, 27594, 29295, 31682, 32550, 32850, 33945, 38325, 40734, 41850, 45990, 47523, 48825, 49275, 56575, 58590, 61101, 67890, 68985, 76650, 79205, 95046, 97650, 98550, 101835, 113150, 114975, 122202, 137970, 142569, 146475, 158410, 169725, 203670, 229950, 237615, 285138, 292950, 305505, 339450, 344925, 396025, 427707, 475230, 509175, 611010, 689850, 712845, 792050, 855414, 1018350, 1188075, 1425690, 1527525, 2138535, 2376150, 3055050, 3564225, 4277070, 7128450, 10692675, 21385350]

約数ペア:

[(1, 21385350), (2, 10692675), (3, 7128450), (5, 4277070), (6, 3564225), (7, 3055050), (9, 2376150), (10, 2138535), (14, 1527525), (15, 1425690), (18, 1188075), (21, 1018350), (25, 855414), (27, 792050), (30, 712845), (31, 689850), (35, 611010), (42, 509175), (45, 475230), (50, 427707), (54, 396025), (62, 344925), (63, 339450), (70, 305505), (73, 292950), (75, 285138), (90, 237615), (93, 229950), (105, 203670), (126, 169725), (135, 158410), (146, 146475), (150, 142569), (155, 137970), (175, 122202), (186, 114975), (189, 113150), (210, 101835), (217, 98550), (219, 97650), (225, 95046), (270, 79205), (279, 76650), (310, 68985), (315, 67890), (350, 61101), (365, 58590), (378, 56575), (434, 49275), (438, 48825), (450, 47523), (465, 45990), (511, 41850), (525, 40734), (558, 38325), (630, 33945), (651, 32850), (657, 32550), (675, 31682), (730, 29295), (775, 27594), (837, 25550), (930, 22995), (945, 22630), (1022, 20925), (1050, 20367), (1085, 19710), (1095, 19530), (1302, 16425), (1314, 16275), (1350, 15841), (1395, 15330), (1533, 13950), (1550, 13797), (1575, 13578), (1674, 12775), (1825, 11718), (1890, 11315), (1953, 10950), (1971, 10850), (2170, 9855), (2190, 9765), (2263, 9450), (2325, 9198), (2555, 8370), (2790, 7665), (3066, 6975), (3150, 6789), (3255, 6570), (3285, 6510), (3650, 5859), (3906, 5475), (3942, 5425), (4185, 5110), (4526, 4725), (4599, 4650)]