20597668

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{797}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 24447836

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 797, 923, 994, 1594, 1846, 1988, 3188, 3692, 5579, 6461, 10361, 11158, 12922, 20722, 22316, 25844, 41444, 56587, 72527, 113174, 145054, 226348, 290108, 396109, 735631, 792218, 1471262, 1584436, 2942524, 5149417, 10298834, 20597668]

約数ペア:

[(1, 20597668), (2, 10298834), (4, 5149417), (7, 2942524), (13, 1584436), (14, 1471262), (26, 792218), (28, 735631), (52, 396109), (71, 290108), (91, 226348), (142, 145054), (182, 113174), (284, 72527), (364, 56587), (497, 41444), (797, 25844), (923, 22316), (994, 20722), (1594, 12922), (1846, 11158), (1988, 10361), (3188, 6461), (3692, 5579)]