20493668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1721}}^1$

素因数の和:1967

約数の個数: 24

約数和(自身を含む): 38813880

約数和(自身を除く): 18320212

約数列:

[1, 2, 4, 13, 26, 52, 229, 458, 916, 1721, 2977, 3442, 5954, 6884, 11908, 22373, 44746, 89492, 394109, 788218, 1576436, 5123417, 10246834, 20493668]

約数ペア:

[(1, 20493668), (2, 10246834), (4, 5123417), (13, 1576436), (26, 788218), (52, 394109), (229, 89492), (458, 44746), (916, 22373), (1721, 11908), (2977, 6884), (3442, 5954)]