19956528

素因数分解:

$2^4\times 3^2\times {\mathrm{138587}}^1$

素因数の和:138601

約数の個数: 30

約数和(自身を含む): 55850964

約数和(自身を除く): 35894436

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138587, 277174, 415761, 554348, 831522, 1108696, 1247283, 1663044, 2217392, 2494566, 3326088, 4989132, 6652176, 9978264, 19956528]

約数ペア:

[(1, 19956528), (2, 9978264), (3, 6652176), (4, 4989132), (6, 3326088), (8, 2494566), (9, 2217392), (12, 1663044), (16, 1247283), (18, 1108696), (24, 831522), (36, 554348), (48, 415761), (72, 277174), (144, 138587)]