20156470019

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{1423379}}^1$

素因数の和:1423427

約数の個数: 18

約数和(自身を含む): 24907726620

約数和(自身を除く): 4751256601

約数列:

[1, 7, 17, 49, 119, 289, 833, 2023, 14161, 1423379, 9963653, 24197443, 69745571, 169382101, 411356531, 1185674707, 2879495717, 20156470019]

約数ペア:

[(1, 20156470019), (7, 2879495717), (17, 1185674707), (49, 411356531), (119, 169382101), (289, 69745571), (833, 24197443), (2023, 9963653), (14161, 1423379)]