21907522988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{947}}^1\times {\mathrm{444877}}^1$

素因数の和:445841

約数の個数: 24

約数和(自身を含む): 41330945712

約数和(自身を除く): 19423422724

約数列:

[1, 2, 4, 13, 26, 52, 947, 1894, 3788, 12311, 24622, 49244, 444877, 889754, 1779508, 5783401, 11566802, 23133604, 421298519, 842597038, 1685194076, 5476880747, 10953761494, 21907522988]

約数ペア:

[(1, 21907522988), (2, 10953761494), (4, 5476880747), (13, 1685194076), (26, 842597038), (52, 421298519), (947, 23133604), (1894, 11566802), (3788, 5783401), (12311, 1779508), (24622, 889754), (49244, 444877)]