21300084

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^2\times {\mathrm{389}}^1$

素因数の和:431

約数の個数: 90

約数和(自身を含む): 60450390

約数和(自身を除く): 39150306

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 169, 234, 324, 338, 351, 389, 468, 507, 676, 702, 778, 1014, 1053, 1167, 1404, 1521, 1556, 2028, 2106, 2334, 3042, 3501, 4212, 4563, 4668, 5057, 6084, 7002, 9126, 10114, 10503, 13689, 14004, 15171, 18252, 20228, 21006, 27378, 30342, 31509, 42012, 45513, 54756, 60684, 63018, 65741, 91026, 126036, 131482, 136539, 182052, 197223, 262964, 273078, 394446, 409617, 546156, 591669, 788892, 819234, 1183338, 1638468, 1775007, 2366676, 3550014, 5325021, 7100028, 10650042, 21300084]

約数ペア:

[(1, 21300084), (2, 10650042), (3, 7100028), (4, 5325021), (6, 3550014), (9, 2366676), (12, 1775007), (13, 1638468), (18, 1183338), (26, 819234), (27, 788892), (36, 591669), (39, 546156), (52, 409617), (54, 394446), (78, 273078), (81, 262964), (108, 197223), (117, 182052), (156, 136539), (162, 131482), (169, 126036), (234, 91026), (324, 65741), (338, 63018), (351, 60684), (389, 54756), (468, 45513), (507, 42012), (676, 31509), (702, 30342), (778, 27378), (1014, 21006), (1053, 20228), (1167, 18252), (1404, 15171), (1521, 14004), (1556, 13689), (2028, 10503), (2106, 10114), (2334, 9126), (3042, 7002), (3501, 6084), (4212, 5057), (4563, 4668)]