21304530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 96

約数和(自身を含む): 60540480

約数和(自身を除く): 39235950

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 131, 139, 195, 234, 262, 278, 390, 393, 417, 585, 655, 695, 786, 834, 1170, 1179, 1251, 1310, 1390, 1703, 1807, 1965, 2085, 2358, 2502, 3406, 3614, 3930, 4170, 5109, 5421, 5895, 6255, 8515, 9035, 10218, 10842, 11790, 12510, 15327, 16263, 17030, 18070, 18209, 25545, 27105, 30654, 32526, 36418, 51090, 54210, 54627, 76635, 81315, 91045, 109254, 153270, 162630, 163881, 182090, 236717, 273135, 327762, 473434, 546270, 710151, 819405, 1183585, 1420302, 1638810, 2130453, 2367170, 3550755, 4260906, 7101510, 10652265, 21304530]

約数ペア:

[(1, 21304530), (2, 10652265), (3, 7101510), (5, 4260906), (6, 3550755), (9, 2367170), (10, 2130453), (13, 1638810), (15, 1420302), (18, 1183585), (26, 819405), (30, 710151), (39, 546270), (45, 473434), (65, 327762), (78, 273135), (90, 236717), (117, 182090), (130, 163881), (131, 162630), (139, 153270), (195, 109254), (234, 91045), (262, 81315), (278, 76635), (390, 54627), (393, 54210), (417, 51090), (585, 36418), (655, 32526), (695, 30654), (786, 27105), (834, 25545), (1170, 18209), (1179, 18070), (1251, 17030), (1310, 16263), (1390, 15327), (1703, 12510), (1807, 11790), (1965, 10842), (2085, 10218), (2358, 9035), (2502, 8515), (3406, 6255), (3614, 5895), (3930, 5421), (4170, 5109)]