20347701615

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2880071}}^1$

素因数の和:2880239

約数の個数: 24

約数和(自身を含む): 35494007328

約数和(自身を除く): 15146305713

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 2355, 7065, 2880071, 8640213, 14400355, 25920639, 43201065, 129603195, 452171147, 1356513441, 2260855735, 4069540323, 6782567205, 20347701615]

約数ペア:

[(1, 20347701615), (3, 6782567205), (5, 4069540323), (9, 2260855735), (15, 1356513441), (45, 452171147), (157, 129603195), (471, 43201065), (785, 25920639), (1413, 14400355), (2355, 8640213), (7065, 2880071)]