21920626

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2801}}^1$

素因数の和:2866

約数の個数: 32

約数和(自身を含む): 41424768

約数和(自身を除く): 19504142

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 182, 301, 559, 602, 1118, 2801, 3913, 5602, 7826, 19607, 36413, 39214, 72826, 120443, 240886, 254891, 509782, 843101, 1565759, 1686202, 3131518, 10960313, 21920626]

約数ペア:

[(1, 21920626), (2, 10960313), (7, 3131518), (13, 1686202), (14, 1565759), (26, 843101), (43, 509782), (86, 254891), (91, 240886), (182, 120443), (301, 72826), (559, 39214), (602, 36413), (1118, 19607), (2801, 7826), (3913, 5602)]