20912372

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1013}}^1$

素因数の和:1427

約数の個数: 24

約数和(自身を含む): 39550056

約数和(自身を除く): 18637684

約数列:

[1, 2, 4, 13, 26, 52, 397, 794, 1013, 1588, 2026, 4052, 5161, 10322, 13169, 20644, 26338, 52676, 402161, 804322, 1608644, 5228093, 10456186, 20912372]

約数ペア:

[(1, 20912372), (2, 10456186), (4, 5228093), (13, 1608644), (26, 804322), (52, 402161), (397, 52676), (794, 26338), (1013, 20644), (1588, 13169), (2026, 10322), (4052, 5161)]