645155497

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{20341}}^1$

素因数の和:20568

約数の個数: 16

約数和(自身を含む): 773321472

約数和(自身を除く): 128165975

約数列:

[1, 7, 23, 161, 197, 1379, 4531, 20341, 31717, 142387, 467843, 3274901, 4007177, 28050239, 92165071, 645155497]

約数ペア:

[(1, 645155497), (7, 92165071), (23, 28050239), (161, 4007177), (197, 3274901), (1379, 467843), (4531, 142387), (20341, 31717)]