21653109

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{13147}}^1$

素因数の和:13217

約数の個数: 16

約数和(自身を含む): 32607040

約数和(自身を除く): 10953931

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 13147, 39441, 118323, 354969, 801967, 2405901, 7217703, 21653109]

約数ペア:

[(1, 21653109), (3, 7217703), (9, 2405901), (27, 801967), (61, 354969), (183, 118323), (549, 39441), (1647, 13147)]