18818866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 32230080

約数和(自身を除く): 13411214

約数列:

[1, 2, 11, 22, 37, 61, 74, 122, 379, 407, 671, 758, 814, 1342, 2257, 4169, 4514, 8338, 14023, 23119, 24827, 28046, 46238, 49654, 154253, 254309, 308506, 508618, 855403, 1710806, 9409433, 18818866]

約数ペア:

[(1, 18818866), (2, 9409433), (11, 1710806), (22, 855403), (37, 508618), (61, 308506), (74, 254309), (122, 154253), (379, 49654), (407, 46238), (671, 28046), (758, 24827), (814, 23119), (1342, 14023), (2257, 8338), (4169, 4514)]