21466484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7789}}^1$

素因数の和:7859

約数の個数: 24

約数和(自身を含む): 41224680

約数和(自身を除く): 19758196

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7789, 15578, 31156, 101257, 202514, 405028, 412817, 825634, 1651268, 5366621, 10733242, 21466484]

約数ペア:

[(1, 21466484), (2, 10733242), (4, 5366621), (13, 1651268), (26, 825634), (52, 412817), (53, 405028), (106, 202514), (212, 101257), (689, 31156), (1378, 15578), (2756, 7789)]