18997576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4937}}^1$

素因数の和:4993

約数の個数: 32

約数和(自身を含む): 39405240

約数和(自身を除く): 20407664

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 4937, 9874, 19748, 39496, 64181, 128362, 182669, 256724, 365338, 513448, 730676, 1461352, 2374697, 4749394, 9498788, 18997576]

約数ペア:

[(1, 18997576), (2, 9498788), (4, 4749394), (8, 2374697), (13, 1461352), (26, 730676), (37, 513448), (52, 365338), (74, 256724), (104, 182669), (148, 128362), (296, 64181), (481, 39496), (962, 19748), (1924, 9874), (3848, 4937)]