398245897

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{27793}}^1$

素因数の和:27912

約数の個数: 16

約数和(自身を含む): 480280320

約数和(自身を除く): 82034423

約数列:

[1, 7, 23, 89, 161, 623, 2047, 14329, 27793, 194551, 639239, 2473577, 4474673, 17315039, 56892271, 398245897]

約数ペア:

[(1, 398245897), (7, 56892271), (23, 17315039), (89, 4474673), (161, 2473577), (623, 639239), (2047, 194551), (14329, 27793)]