20124027

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 36840960

約数和(自身を除く): 16716933

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 409, 497, 639, 693, 781, 1227, 1491, 2343, 2863, 3681, 4473, 4499, 5467, 7029, 8589, 13497, 16401, 25767, 29039, 31493, 40491, 49203, 87117, 94479, 203273, 261351, 283437, 319429, 609819, 958287, 1829457, 2236003, 2874861, 6708009, 20124027]

約数ペア:

[(1, 20124027), (3, 6708009), (7, 2874861), (9, 2236003), (11, 1829457), (21, 958287), (33, 609819), (63, 319429), (71, 283437), (77, 261351), (99, 203273), (213, 94479), (231, 87117), (409, 49203), (497, 40491), (639, 31493), (693, 29039), (781, 25767), (1227, 16401), (1491, 13497), (2343, 8589), (2863, 7029), (3681, 5467), (4473, 4499)]