20320983

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{761}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 32186880

約数和(自身を除く): 11865897

約数列:

[1, 3, 9, 23, 27, 43, 69, 129, 207, 387, 621, 761, 989, 1161, 2283, 2967, 6849, 8901, 17503, 20547, 26703, 32723, 52509, 98169, 157527, 294507, 472581, 752629, 883521, 2257887, 6773661, 20320983]

約数ペア:

[(1, 20320983), (3, 6773661), (9, 2257887), (23, 883521), (27, 752629), (43, 472581), (69, 294507), (129, 157527), (207, 98169), (387, 52509), (621, 32723), (761, 26703), (989, 20547), (1161, 17503), (2283, 8901), (2967, 6849)]