21369218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{5443}}^1$

素因数の和:5609

約数の個数: 16

約数和(自身を含む): 34754496

約数和(自身を除く): 13385278

約数列:

[1, 2, 13, 26, 151, 302, 1963, 3926, 5443, 10886, 70759, 141518, 821893, 1643786, 10684609, 21369218]

約数ペア:

[(1, 21369218), (2, 10684609), (13, 1643786), (26, 821893), (151, 141518), (302, 70759), (1963, 10886), (3926, 5443)]