18906732

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 33378228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 569, 639, 852, 923, 1138, 1278, 1707, 1846, 2276, 2556, 2769, 3414, 3692, 5121, 5538, 6828, 7397, 8307, 10242, 11076, 14794, 16614, 20484, 22191, 29588, 33228, 40399, 44382, 66573, 80798, 88764, 121197, 133146, 161596, 242394, 266292, 363591, 484788, 525187, 727182, 1050374, 1454364, 1575561, 2100748, 3151122, 4726683, 6302244, 9453366, 18906732]

約数ペア:

[(1, 18906732), (2, 9453366), (3, 6302244), (4, 4726683), (6, 3151122), (9, 2100748), (12, 1575561), (13, 1454364), (18, 1050374), (26, 727182), (36, 525187), (39, 484788), (52, 363591), (71, 266292), (78, 242394), (117, 161596), (142, 133146), (156, 121197), (213, 88764), (234, 80798), (284, 66573), (426, 44382), (468, 40399), (569, 33228), (639, 29588), (852, 22191), (923, 20484), (1138, 16614), (1278, 14794), (1707, 11076), (1846, 10242), (2276, 8307), (2556, 7397), (2769, 6828), (3414, 5538), (3692, 5121)]