20913340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149381}}^1$

素因数の和:149397

約数の個数: 24

約数和(自身を含む): 50192352

約数和(自身を除く): 29279012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149381, 298762, 597524, 746905, 1045667, 1493810, 2091334, 2987620, 4182668, 5228335, 10456670, 20913340]

約数ペア:

[(1, 20913340), (2, 10456670), (4, 5228335), (5, 4182668), (7, 2987620), (10, 2091334), (14, 1493810), (20, 1045667), (28, 746905), (35, 597524), (70, 298762), (140, 149381)]