31639881

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{5039}}^1$

素因数の和:5085

約数の個数: 32

約数和(自身を含む): 54190080

約数和(自身を除く): 22550199

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 5039, 6279, 15117, 35273, 65507, 105819, 115897, 196521, 347691, 458549, 811279, 1375647, 1506661, 2433837, 4519983, 10546627, 31639881]

約数ペア:

[(1, 31639881), (3, 10546627), (7, 4519983), (13, 2433837), (21, 1506661), (23, 1375647), (39, 811279), (69, 458549), (91, 347691), (161, 196521), (273, 115897), (299, 105819), (483, 65507), (897, 35273), (2093, 15117), (5039, 6279)]