18720434

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{28979}}^1$

素因数の和:29017

約数の個数: 16

約数和(自身を含む): 31298400

約数和(自身を除く): 12577966

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 28979, 57958, 492643, 550601, 985286, 1101202, 9360217, 18720434]

約数ペア:

[(1, 18720434), (2, 9360217), (17, 1101202), (19, 985286), (34, 550601), (38, 492643), (323, 57958), (646, 28979)]