31502913

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 47480832

約数和(自身を除く): 15977919

約数列:

[1, 3, 13, 31, 39, 71, 93, 213, 367, 403, 923, 1101, 1209, 2201, 2769, 4771, 6603, 11377, 14313, 26057, 28613, 34131, 78171, 85839, 147901, 338741, 443703, 807767, 1016223, 2423301, 10500971, 31502913]

約数ペア:

[(1, 31502913), (3, 10500971), (13, 2423301), (31, 1016223), (39, 807767), (71, 443703), (93, 338741), (213, 147901), (367, 85839), (403, 78171), (923, 34131), (1101, 28613), (1209, 26057), (2201, 14313), (2769, 11377), (4771, 6603)]