21660956

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{491}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 39054960

約数和(自身を除く): 17394004

約数列:

[1, 2, 4, 41, 82, 164, 269, 491, 538, 982, 1076, 1964, 11029, 20131, 22058, 40262, 44116, 80524, 132079, 264158, 528316, 5415239, 10830478, 21660956]

約数ペア:

[(1, 21660956), (2, 10830478), (4, 5415239), (41, 528316), (82, 264158), (164, 132079), (269, 80524), (491, 44116), (538, 40262), (982, 22058), (1076, 20131), (1964, 11029)]