18974207

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{619}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 22617600

約数和(自身を除く): 3643393

約数列:

[1, 7, 29, 151, 203, 619, 1057, 4333, 4379, 17951, 30653, 93469, 125657, 654283, 2710601, 18974207]

約数ペア:

[(1, 18974207), (7, 2710601), (29, 654283), (151, 125657), (203, 93469), (619, 30653), (1057, 17951), (4333, 4379)]