21491448

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:788

約数の個数: 64

約数和(自身を含む): 59166720

約数和(自身を除く): 37675272

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 127, 132, 254, 264, 381, 508, 641, 762, 1016, 1282, 1397, 1524, 1923, 2564, 2794, 3048, 3846, 4191, 5128, 5588, 7051, 7692, 8382, 11176, 14102, 15384, 16764, 21153, 28204, 33528, 42306, 56408, 81407, 84612, 162814, 169224, 244221, 325628, 488442, 651256, 895477, 976884, 1790954, 1953768, 2686431, 3581908, 5372862, 7163816, 10745724, 21491448]

約数ペア:

[(1, 21491448), (2, 10745724), (3, 7163816), (4, 5372862), (6, 3581908), (8, 2686431), (11, 1953768), (12, 1790954), (22, 976884), (24, 895477), (33, 651256), (44, 488442), (66, 325628), (88, 244221), (127, 169224), (132, 162814), (254, 84612), (264, 81407), (381, 56408), (508, 42306), (641, 33528), (762, 28204), (1016, 21153), (1282, 16764), (1397, 15384), (1524, 14102), (1923, 11176), (2564, 8382), (2794, 7692), (3048, 7051), (3846, 5588), (4191, 5128)]