20649363

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{827}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 33384960

約数和(自身を除く): 12735597

約数列:

[1, 3, 7, 21, 29, 41, 87, 123, 203, 287, 609, 827, 861, 1189, 2481, 3567, 5789, 8323, 17367, 23983, 24969, 33907, 71949, 101721, 167881, 237349, 503643, 712047, 983303, 2949909, 6883121, 20649363]

約数ペア:

[(1, 20649363), (3, 6883121), (7, 2949909), (21, 983303), (29, 712047), (41, 503643), (87, 237349), (123, 167881), (203, 101721), (287, 71949), (609, 33907), (827, 24969), (861, 23983), (1189, 17367), (2481, 8323), (3567, 5789)]