18771544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 41184000

約数和(自身を除く): 22412456

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 103, 109, 152, 206, 209, 218, 412, 418, 436, 824, 836, 872, 1133, 1199, 1672, 1957, 2071, 2266, 2398, 3914, 4142, 4532, 4796, 7828, 8284, 9064, 9592, 11227, 15656, 16568, 21527, 22454, 22781, 43054, 44908, 45562, 86108, 89816, 91124, 123497, 172216, 182248, 213313, 246994, 426626, 493988, 853252, 987976, 1706504, 2346443, 4692886, 9385772, 18771544]

約数ペア:

[(1, 18771544), (2, 9385772), (4, 4692886), (8, 2346443), (11, 1706504), (19, 987976), (22, 853252), (38, 493988), (44, 426626), (76, 246994), (88, 213313), (103, 182248), (109, 172216), (152, 123497), (206, 91124), (209, 89816), (218, 86108), (412, 45562), (418, 44908), (436, 43054), (824, 22781), (836, 22454), (872, 21527), (1133, 16568), (1199, 15656), (1672, 11227), (1957, 9592), (2071, 9064), (2266, 8284), (2398, 7828), (3914, 4796), (4142, 4532)]