21156434

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{1181}}^1$

素因数の和:1262

約数の個数: 24

約数和(自身を含む): 35041572

約数和(自身を除く): 13885138

約数列:

[1, 2, 13, 26, 53, 106, 169, 338, 689, 1181, 1378, 2362, 8957, 15353, 17914, 30706, 62593, 125186, 199589, 399178, 813709, 1627418, 10578217, 21156434]

約数ペア:

[(1, 21156434), (2, 10578217), (13, 1627418), (26, 813709), (53, 399178), (106, 199589), (169, 125186), (338, 62593), (689, 30706), (1181, 17914), (1378, 15353), (2362, 8957)]