21919924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2207}}^1$

素因数の和:2415

約数の個数: 24

約数和(自身を含む): 41545728

約数和(自身を除く): 19625804

約数列:

[1, 2, 4, 13, 26, 52, 191, 382, 764, 2207, 2483, 4414, 4966, 8828, 9932, 28691, 57382, 114764, 421537, 843074, 1686148, 5479981, 10959962, 21919924]

約数ペア:

[(1, 21919924), (2, 10959962), (4, 5479981), (13, 1686148), (26, 843074), (52, 421537), (191, 114764), (382, 57382), (764, 28691), (2207, 9932), (2483, 8828), (4414, 4966)]