31218187

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2399}}^1$

素因数の和:2443

約数の個数: 24

約数和(自身を含む): 42163200

約数和(自身を除く): 10945013

約数列:

[1, 7, 11, 13, 77, 91, 143, 169, 1001, 1183, 1859, 2399, 13013, 16793, 26389, 31187, 184723, 218309, 343057, 405431, 2401399, 2838017, 4459741, 31218187]

約数ペア:

[(1, 31218187), (7, 4459741), (11, 2838017), (13, 2401399), (77, 405431), (91, 343057), (143, 218309), (169, 184723), (1001, 31187), (1183, 26389), (1859, 16793), (2399, 13013)]