21890037

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3767}}^1$

素因数の和:3932

約数の個数: 16

約数和(自身を含む): 31651200

約数和(自身を除く): 9761163

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3767, 5811, 11301, 48971, 146913, 561283, 1683849, 7296679, 21890037]

約数ペア:

[(1, 21890037), (3, 7296679), (13, 1683849), (39, 561283), (149, 146913), (447, 48971), (1937, 11301), (3767, 5811)]