20842484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{2459}}^1$

素因数の和:2639

約数の個数: 24

約数和(自身を含む): 39537120

約数和(自身を除く): 18694636

約数列:

[1, 2, 4, 13, 26, 52, 163, 326, 652, 2119, 2459, 4238, 4918, 8476, 9836, 31967, 63934, 127868, 400817, 801634, 1603268, 5210621, 10421242, 20842484]

約数ペア:

[(1, 20842484), (2, 10421242), (4, 5210621), (13, 1603268), (26, 801634), (52, 400817), (163, 127868), (326, 63934), (652, 31967), (2119, 9836), (2459, 8476), (4238, 4918)]