21721212

素因数分解:

$2^2\times 3^2\times {\mathrm{269}}^1\times {\mathrm{2243}}^1$

素因数の和:2522

約数の個数: 36

約数和(自身を含む): 55135080

約数和(自身を除く): 33413868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 269, 538, 807, 1076, 1614, 2243, 2421, 3228, 4486, 4842, 6729, 8972, 9684, 13458, 20187, 26916, 40374, 80748, 603367, 1206734, 1810101, 2413468, 3620202, 5430303, 7240404, 10860606, 21721212]

約数ペア:

[(1, 21721212), (2, 10860606), (3, 7240404), (4, 5430303), (6, 3620202), (9, 2413468), (12, 1810101), (18, 1206734), (36, 603367), (269, 80748), (538, 40374), (807, 26916), (1076, 20187), (1614, 13458), (2243, 9684), (2421, 8972), (3228, 6729), (4486, 4842)]