20118436

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29761}}^1$

素因数の和:29791

約数の個数: 18

約数和(自身を含む): 38125122

約数和(自身を除く): 18006686

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29761, 59522, 119044, 386893, 773786, 1547572, 5029609, 10059218, 20118436]

約数ペア:

[(1, 20118436), (2, 10059218), (4, 5029609), (13, 1547572), (26, 773786), (52, 386893), (169, 119044), (338, 59522), (676, 29761)]