21663512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3109}}^1$

素因数の和:3195

約数の個数: 32

約数和(自身を含む): 44410800

約数和(自身を除く): 22747288

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 3109, 3484, 6218, 6968, 12436, 24872, 40417, 80834, 161668, 208303, 323336, 416606, 833212, 1666424, 2707939, 5415878, 10831756, 21663512]

約数ペア:

[(1, 21663512), (2, 10831756), (4, 5415878), (8, 2707939), (13, 1666424), (26, 833212), (52, 416606), (67, 323336), (104, 208303), (134, 161668), (268, 80834), (536, 40417), (871, 24872), (1742, 12436), (3109, 6968), (3484, 6218)]