20278399519

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{420269}}^1$

素因数の和:420450

約数の個数: 16

約数和(自身を含む): 23763746880

約数和(自身を除く): 3485347361

約数列:

[1, 7, 61, 113, 427, 791, 6893, 48251, 420269, 2941883, 25636409, 47490397, 179454863, 332432779, 2896914217, 20278399519]

約数ペア:

[(1, 20278399519), (7, 2896914217), (61, 332432779), (113, 179454863), (427, 47490397), (791, 25636409), (6893, 2941883), (48251, 420269)]