21155631

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24571}}^1$

素因数の和:24622

約数の個数: 16

約数和(自身を含む): 33024768

約数和(自身を除く): 11869137

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24571, 73713, 171997, 515991, 1007411, 3022233, 7051877, 21155631]

約数ペア:

[(1, 21155631), (3, 7051877), (7, 3022233), (21, 1007411), (41, 515991), (123, 171997), (287, 73713), (861, 24571)]