217891297

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{1601}}^1$

素因数の和:1681

約数の個数: 24

約数和(自身を含む): 256352040

約数和(自身を除く): 38460743

約数列:

[1, 13, 19, 29, 247, 361, 377, 551, 1601, 4693, 7163, 10469, 20813, 30419, 46429, 136097, 395447, 577961, 603577, 882151, 7513493, 11467963, 16760869, 217891297]

約数ペア:

[(1, 217891297), (13, 16760869), (19, 11467963), (29, 7513493), (247, 882151), (361, 603577), (377, 577961), (551, 395447), (1601, 136097), (4693, 46429), (7163, 30419), (10469, 20813)]