20403213

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{1747}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 28946880

約数和(自身を除く): 8543667

約数列:

[1, 3, 17, 51, 229, 687, 1747, 3893, 5241, 11679, 29699, 89097, 400063, 1200189, 6801071, 20403213]

約数ペア:

[(1, 20403213), (3, 6801071), (17, 1200189), (51, 400063), (229, 89097), (687, 29699), (1747, 11679), (3893, 5241)]