19990686578

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{32609}}^1\times {\mathrm{13327}}^1$

素因数の和:45961

約数の個数: 16

約数和(自身を含む): 31293077760

約数和(自身を除く): 11302391182

約数列:

[1, 2, 23, 46, 13327, 26654, 32609, 65218, 306521, 613042, 750007, 1500014, 434580143, 869160286, 9995343289, 19990686578]

約数ペア:

[(1, 19990686578), (2, 9995343289), (23, 869160286), (46, 434580143), (13327, 1500014), (26654, 750007), (32609, 613042), (65218, 306521)]