20994090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53831}}^1$

素因数の和:53854

約数の個数: 32

約数和(自身を含む): 54262656

約数和(自身を除く): 33268566

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53831, 107662, 161493, 269155, 322986, 538310, 699803, 807465, 1399606, 1614930, 2099409, 3499015, 4198818, 6998030, 10497045, 20994090]

約数ペア:

[(1, 20994090), (2, 10497045), (3, 6998030), (5, 4198818), (6, 3499015), (10, 2099409), (13, 1614930), (15, 1399606), (26, 807465), (30, 699803), (39, 538310), (65, 322986), (78, 269155), (130, 161493), (195, 107662), (390, 53831)]