12928713021

素因数分解:

$3^4\times 7^1\times {\mathrm{22801963}}^1$

素因数の和:22801982

約数の個数: 20

約数和(自身を含む): 22072301152

約数和(自身を除く): 9143588131

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 22801963, 68405889, 159613741, 205217667, 478841223, 615653001, 1436523669, 1846959003, 4309571007, 12928713021]

約数ペア:

[(1, 12928713021), (3, 4309571007), (7, 1846959003), (9, 1436523669), (21, 615653001), (27, 478841223), (63, 205217667), (81, 159613741), (189, 68405889), (567, 22801963)]