20651042013

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{112657}}^1$

素因数の和:112746

約数の個数: 48

約数和(自身を含む): 33905551680

約数和(自身を除く): 13254509667

約数列:

[1, 3, 7, 21, 29, 43, 49, 87, 129, 147, 203, 301, 609, 903, 1247, 1421, 2107, 3741, 4263, 6321, 8729, 26187, 61103, 112657, 183309, 337971, 788599, 2365797, 3267053, 4844251, 5520193, 9801159, 14532753, 16560579, 22869371, 33909757, 68608113, 101729271, 140483279, 160085597, 237368299, 421449837, 480256791, 712104897, 983382953, 2950148859, 6883680671, 20651042013]

約数ペア:

[(1, 20651042013), (3, 6883680671), (7, 2950148859), (21, 983382953), (29, 712104897), (43, 480256791), (49, 421449837), (87, 237368299), (129, 160085597), (147, 140483279), (203, 101729271), (301, 68608113), (609, 33909757), (903, 22869371), (1247, 16560579), (1421, 14532753), (2107, 9801159), (3741, 5520193), (4263, 4844251), (6321, 3267053), (8729, 2365797), (26187, 788599), (61103, 337971), (112657, 183309)]