21339142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15901}}^1$

素因数の和:15975

約数の個数: 16

約数和(自身を含む): 35493264

約数和(自身を除く): 14154122

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15901, 31802, 174911, 349822, 969961, 1939922, 10669571, 21339142]

約数ペア:

[(1, 21339142), (2, 10669571), (11, 1939922), (22, 969961), (61, 349822), (122, 174911), (671, 31802), (1342, 15901)]