21102523

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 24507360

約数和(自身を除く): 3404837

約数列:

[1, 13, 23, 61, 89, 169, 299, 793, 1157, 1403, 2047, 3887, 5429, 10309, 15041, 18239, 26611, 70577, 124867, 237107, 345943, 917501, 1623271, 21102523]

約数ペア:

[(1, 21102523), (13, 1623271), (23, 917501), (61, 345943), (89, 237107), (169, 124867), (299, 70577), (793, 26611), (1157, 18239), (1403, 15041), (2047, 10309), (3887, 5429)]