215328139

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1787}}^1$

素因数の和:1867

約数の個数: 24

約数和(自身を含む): 251292672

約数和(自身を除く): 35964533

約数列:

[1, 13, 23, 31, 169, 299, 403, 713, 1787, 3887, 5239, 9269, 23231, 41101, 55397, 120497, 302003, 534313, 720161, 1274131, 6946069, 9362093, 16563703, 215328139]

約数ペア:

[(1, 215328139), (13, 16563703), (23, 9362093), (31, 6946069), (169, 1274131), (299, 720161), (403, 534313), (713, 302003), (1787, 120497), (3887, 55397), (5239, 41101), (9269, 23231)]