21913388

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4861}}^1$

素因数の和:4902

約数の個数: 36

約数和(自身を含む): 46558512

約数和(自身を除く): 24645124

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 4861, 9722, 19444, 34027, 68054, 111803, 136108, 223606, 238189, 447212, 476378, 782621, 952756, 1565242, 3130484, 5478347, 10956694, 21913388]

約数ペア:

[(1, 21913388), (2, 10956694), (4, 5478347), (7, 3130484), (14, 1565242), (23, 952756), (28, 782621), (46, 476378), (49, 447212), (92, 238189), (98, 223606), (161, 136108), (196, 111803), (322, 68054), (644, 34027), (1127, 19444), (2254, 9722), (4508, 4861)]