18396807

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 31664640

約数和(自身を除く): 13267833

約数列:

[1, 3, 11, 13, 19, 33, 37, 39, 57, 61, 111, 143, 183, 209, 247, 407, 429, 481, 627, 671, 703, 741, 793, 1159, 1221, 1443, 2013, 2109, 2257, 2379, 2717, 3477, 5291, 6771, 7733, 8151, 8723, 9139, 12749, 15067, 15873, 23199, 24827, 26169, 27417, 29341, 38247, 42883, 45201, 74481, 88023, 100529, 128649, 165737, 301587, 322751, 471713, 497211, 557479, 968253, 1415139, 1672437, 6132269, 18396807]

約数ペア:

[(1, 18396807), (3, 6132269), (11, 1672437), (13, 1415139), (19, 968253), (33, 557479), (37, 497211), (39, 471713), (57, 322751), (61, 301587), (111, 165737), (143, 128649), (183, 100529), (209, 88023), (247, 74481), (407, 45201), (429, 42883), (481, 38247), (627, 29341), (671, 27417), (703, 26169), (741, 24827), (793, 23199), (1159, 15873), (1221, 15067), (1443, 12749), (2013, 9139), (2109, 8723), (2257, 8151), (2379, 7733), (2717, 6771), (3477, 5291)]