19997005

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{24841}}^1$

素因数の和:24876

約数の個数: 16

約数和(自身を含む): 28617984

約数和(自身を除く): 8620979

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 24841, 124205, 173887, 571343, 869435, 2856715, 3999401, 19997005]

約数ペア:

[(1, 19997005), (5, 3999401), (7, 2856715), (23, 869435), (35, 571343), (115, 173887), (161, 124205), (805, 24841)]