21517028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9623}}^1$

素因数の和:9683

約数の個数: 24

約数和(自身を含む): 41498688

約数和(自身を除く): 19981660

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9623, 19246, 38492, 125099, 250198, 413789, 500396, 827578, 1655156, 5379257, 10758514, 21517028]

約数ペア:

[(1, 21517028), (2, 10758514), (4, 5379257), (13, 1655156), (26, 827578), (43, 500396), (52, 413789), (86, 250198), (172, 125099), (559, 38492), (1118, 19246), (2236, 9623)]