398397951

素因数分解:

$3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{17231}}^1$

素因数の和:17611

約数の個数: 24

約数和(自身を含む): 659503104

約数和(自身を除く): 261105153

約数列:

[1, 3, 7, 9, 21, 63, 367, 1101, 2569, 3303, 7707, 17231, 23121, 51693, 120617, 155079, 361851, 1085553, 6323777, 18971331, 44266439, 56913993, 132799317, 398397951]

約数ペア:

[(1, 398397951), (3, 132799317), (7, 56913993), (9, 44266439), (21, 18971331), (63, 6323777), (367, 1085553), (1101, 361851), (2569, 155079), (3303, 120617), (7707, 51693), (17231, 23121)]