20288476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{3863}}^1$

素因数の和:3981

約数の個数: 24

約数和(自身を含む): 38624544

約数和(自身を除く): 18336068

約数列:

[1, 2, 4, 13, 26, 52, 101, 202, 404, 1313, 2626, 3863, 5252, 7726, 15452, 50219, 100438, 200876, 390163, 780326, 1560652, 5072119, 10144238, 20288476]

約数ペア:

[(1, 20288476), (2, 10144238), (4, 5072119), (13, 1560652), (26, 780326), (52, 390163), (101, 200876), (202, 100438), (404, 50219), (1313, 15452), (2626, 7726), (3863, 5252)]