21440344

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{86453}}^1$

素因数の和:86490

約数の個数: 16

約数和(自身を含む): 41497920

約数和(自身を除く): 20057576

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 86453, 172906, 345812, 691624, 2680043, 5360086, 10720172, 21440344]

約数ペア:

[(1, 21440344), (2, 10720172), (4, 5360086), (8, 2680043), (31, 691624), (62, 345812), (124, 172906), (248, 86453)]