38991993

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{3001}}^1$

素因数の和:3136

約数の個数: 16

約数和(自身を含む): 53603712

約数和(自身を除く): 14611719

約数列:

[1, 3, 61, 71, 183, 213, 3001, 4331, 9003, 12993, 183061, 213071, 549183, 639213, 12997331, 38991993]

約数ペア:

[(1, 38991993), (3, 12997331), (61, 639213), (71, 549183), (183, 213071), (213, 183061), (3001, 12993), (4331, 9003)]