19909385

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{577}}^1$

素因数の和:752

約数の個数: 16

約数和(自身を含む): 24525696

約数和(自身を除く): 4616311

約数列:

[1, 5, 67, 103, 335, 515, 577, 2885, 6901, 34505, 38659, 59431, 193295, 297155, 3981877, 19909385]

約数ペア:

[(1, 19909385), (5, 3981877), (67, 297155), (103, 193295), (335, 59431), (515, 38659), (577, 34505), (2885, 6901)]