53990209

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 68257728

約数和(自身を除く): 14267519

約数列:

[1, 7, 13, 49, 91, 131, 637, 647, 917, 1703, 4529, 6419, 8411, 11921, 31703, 58877, 83447, 84757, 412139, 593299, 1101841, 4153093, 7712887, 53990209]

約数ペア:

[(1, 53990209), (7, 7712887), (13, 4153093), (49, 1101841), (91, 593299), (131, 412139), (637, 84757), (647, 83447), (917, 58877), (1703, 31703), (4529, 11921), (6419, 8411)]