21436810

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{69151}}^1$

素因数の和:69189

約数の個数: 16

約数和(自身を含む): 39831552

約数和(自身を除く): 18394742

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 69151, 138302, 345755, 691510, 2143681, 4287362, 10718405, 21436810]

約数ペア:

[(1, 21436810), (2, 10718405), (5, 4287362), (10, 2143681), (31, 691510), (62, 345755), (155, 138302), (310, 69151)]