21491285768

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{34005199}}^1$

素因数の和:34005284

約数の個数: 16

約数和(自身を含む): 40806240000

約数和(自身を除く): 19314954232

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 34005199, 68010398, 136020796, 272041592, 2686410721, 5372821442, 10745642884, 21491285768]

約数ペア:

[(1, 21491285768), (2, 10745642884), (4, 5372821442), (8, 2686410721), (79, 272041592), (158, 136020796), (316, 68010398), (632, 34005199)]