155215921

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 188732160

約数和(自身を除く): 33516239

約数列:

[1, 7, 19, 133, 239, 257, 361, 1673, 1799, 2527, 4541, 4883, 31787, 34181, 61423, 86279, 92777, 429961, 603953, 649439, 1167037, 8169259, 22173703, 155215921]

約数ペア:

[(1, 155215921), (7, 22173703), (19, 8169259), (133, 1167037), (239, 649439), (257, 603953), (361, 429961), (1673, 92777), (1799, 86279), (2527, 61423), (4541, 34181), (4883, 31787)]