620139933

素因数分解:

$3^2\times 7^2\times {\mathrm{1406213}}^1$

素因数の和:1406233

約数の個数: 18

約数和(自身を含む): 1042004574

約数和(自身を除く): 421864641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 1406213, 4218639, 9843491, 12655917, 29530473, 68904437, 88591419, 206713311, 620139933]

約数ペア:

[(1, 620139933), (3, 206713311), (7, 88591419), (9, 68904437), (21, 29530473), (49, 12655917), (63, 9843491), (147, 4218639), (441, 1406213)]