21033810

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:413

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 45321390

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 31, 35, 42, 45, 54, 62, 63, 70, 90, 93, 105, 126, 135, 155, 186, 189, 210, 217, 270, 279, 310, 315, 359, 378, 434, 465, 558, 630, 651, 718, 837, 930, 945, 1077, 1085, 1302, 1395, 1674, 1795, 1890, 1953, 2154, 2170, 2513, 2790, 3231, 3255, 3590, 3906, 4185, 5026, 5385, 5859, 6462, 6510, 7539, 8370, 9693, 9765, 10770, 11129, 11718, 12565, 15078, 16155, 19386, 19530, 22258, 22617, 25130, 29295, 32310, 33387, 37695, 45234, 48465, 55645, 58590, 66774, 67851, 75390, 77903, 96930, 100161, 111290, 113085, 135702, 155806, 166935, 200322, 226170, 233709, 300483, 333870, 339255, 389515, 467418, 500805, 600966, 678510, 701127, 779030, 1001610, 1168545, 1402254, 1502415, 2103381, 2337090, 3004830, 3505635, 4206762, 7011270, 10516905, 21033810]

約数ペア:

[(1, 21033810), (2, 10516905), (3, 7011270), (5, 4206762), (6, 3505635), (7, 3004830), (9, 2337090), (10, 2103381), (14, 1502415), (15, 1402254), (18, 1168545), (21, 1001610), (27, 779030), (30, 701127), (31, 678510), (35, 600966), (42, 500805), (45, 467418), (54, 389515), (62, 339255), (63, 333870), (70, 300483), (90, 233709), (93, 226170), (105, 200322), (126, 166935), (135, 155806), (155, 135702), (186, 113085), (189, 111290), (210, 100161), (217, 96930), (270, 77903), (279, 75390), (310, 67851), (315, 66774), (359, 58590), (378, 55645), (434, 48465), (465, 45234), (558, 37695), (630, 33387), (651, 32310), (718, 29295), (837, 25130), (930, 22617), (945, 22258), (1077, 19530), (1085, 19386), (1302, 16155), (1395, 15078), (1674, 12565), (1795, 11718), (1890, 11129), (1953, 10770), (2154, 9765), (2170, 9693), (2513, 8370), (2790, 7539), (3231, 6510), (3255, 6462), (3590, 5859), (3906, 5385), (4185, 5026)]