20976904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{201701}}^1$

素因数の和:201720

約数の個数: 16

約数和(自身を含む): 42357420

約数和(自身を除く): 21380516

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 201701, 403402, 806804, 1613608, 2622113, 5244226, 10488452, 20976904]

約数ペア:

[(1, 20976904), (2, 10488452), (4, 5244226), (8, 2622113), (13, 1613608), (26, 806804), (52, 403402), (104, 201701)]