9988888

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13721}}^1$

素因数の和:13747

約数の個数: 32

約数和(自身を含む): 23052960

約数和(自身を除く): 13064072

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 13721, 27442, 54884, 96047, 109768, 178373, 192094, 356746, 384188, 713492, 768376, 1248611, 1426984, 2497222, 4994444, 9988888]

約数ペア:

[(1, 9988888), (2, 4994444), (4, 2497222), (7, 1426984), (8, 1248611), (13, 768376), (14, 713492), (26, 384188), (28, 356746), (52, 192094), (56, 178373), (91, 109768), (104, 96047), (182, 54884), (364, 27442), (728, 13721)]