21201154

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7481}}^1$

素因数の和:7605

約数の個数: 16

約数和(自身を含む): 34566840

約数和(自身を除く): 13365686

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7481, 14962, 97253, 194506, 815429, 1630858, 10600577, 21201154]

約数ペア:

[(1, 21201154), (2, 10600577), (13, 1630858), (26, 815429), (109, 194506), (218, 97253), (1417, 14962), (2834, 7481)]