21697156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4051}}^1$

素因数の和:4171

約数の個数: 24

約数和(自身を含む): 41297984

約数和(自身を除く): 19600828

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 4051, 5356, 8102, 16204, 52663, 105326, 210652, 417253, 834506, 1669012, 5424289, 10848578, 21697156]

約数ペア:

[(1, 21697156), (2, 10848578), (4, 5424289), (13, 1669012), (26, 834506), (52, 417253), (103, 210652), (206, 105326), (412, 52663), (1339, 16204), (2678, 8102), (4051, 5356)]