20218748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{19979}}^1$

素因数の和:20017

約数の個数: 24

約数和(自身を含む): 40279680

約数和(自身を除く): 20060932

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 19979, 39958, 79916, 219769, 439538, 459517, 879076, 919034, 1838068, 5054687, 10109374, 20218748]

約数ペア:

[(1, 20218748), (2, 10109374), (4, 5054687), (11, 1838068), (22, 919034), (23, 879076), (44, 459517), (46, 439538), (92, 219769), (253, 79916), (506, 39958), (1012, 19979)]