17997891

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{4421}}^1$

素因数の和:4506

約数の個数: 16

約数和(自身を含む): 25470720

約数和(自身を除く): 7472829

約数列:

[1, 3, 23, 59, 69, 177, 1357, 4071, 4421, 13263, 101683, 260839, 305049, 782517, 5999297, 17997891]

約数ペア:

[(1, 17997891), (3, 5999297), (23, 782517), (59, 305049), (69, 260839), (177, 101683), (1357, 13263), (4071, 4421)]