21401324

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1129}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 42903840

約数和(自身を除く): 21502516

約数列:

[1, 2, 4, 7, 14, 28, 677, 1129, 1354, 2258, 2708, 4516, 4739, 7903, 9478, 15806, 18956, 31612, 764333, 1528666, 3057332, 5350331, 10700662, 21401324]

約数ペア:

[(1, 21401324), (2, 10700662), (4, 5350331), (7, 3057332), (14, 1528666), (28, 764333), (677, 31612), (1129, 18956), (1354, 15806), (2258, 9478), (2708, 7903), (4516, 4739)]