20813512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{919}}^1$

素因数の和:1093

約数の個数: 32

約数和(自身を含む): 41400000

約数和(自身を除く): 20586488

約数列:

[1, 2, 4, 8, 19, 38, 76, 149, 152, 298, 596, 919, 1192, 1838, 2831, 3676, 5662, 7352, 11324, 17461, 22648, 34922, 69844, 136931, 139688, 273862, 547724, 1095448, 2601689, 5203378, 10406756, 20813512]

約数ペア:

[(1, 20813512), (2, 10406756), (4, 5203378), (8, 2601689), (19, 1095448), (38, 547724), (76, 273862), (149, 139688), (152, 136931), (298, 69844), (596, 34922), (919, 22648), (1192, 17461), (1838, 11324), (2831, 7352), (3676, 5662)]