221426191

素因数分解:

$7^1\times {\mathrm{233}}^1\times {\mathrm{349}}^1\times {\mathrm{389}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 255528000

約数和(自身を除く): 34101809

約数列:

[1, 7, 233, 349, 389, 1631, 2443, 2723, 81317, 90637, 135761, 569219, 634459, 950327, 31632313, 221426191]

約数ペア:

[(1, 221426191), (7, 31632313), (233, 950327), (349, 634459), (389, 569219), (1631, 135761), (2443, 90637), (2723, 81317)]