18917158

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 32707584

約数和(自身を除く): 13790426

約数列:

[1, 2, 13, 17, 26, 34, 127, 221, 254, 337, 442, 674, 1651, 2159, 3302, 4318, 4381, 5729, 8762, 11458, 28067, 42799, 56134, 74477, 85598, 148954, 556387, 727583, 1112774, 1455166, 9458579, 18917158]

約数ペア:

[(1, 18917158), (2, 9458579), (13, 1455166), (17, 1112774), (26, 727583), (34, 556387), (127, 148954), (221, 85598), (254, 74477), (337, 56134), (442, 42799), (674, 28067), (1651, 11458), (2159, 8762), (3302, 5729), (4318, 4381)]