1618778889

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{2749}}^1$

素因数の和:3494

約数の個数: 48

約数和(自身を含む): 2882880000

約数和(自身を除く): 1264101111

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 719, 819, 2157, 2749, 5033, 6471, 8247, 9347, 15099, 19243, 24741, 28041, 35737, 45297, 57729, 65429, 84123, 107211, 173187, 196287, 250159, 321633, 588861, 750477, 1976531, 2251431, 5929593, 13835717, 17788779, 25694903, 41507151, 77084709, 124521453, 179864321, 231254127, 539592963, 1618778889]

約数ペア:

[(1, 1618778889), (3, 539592963), (7, 231254127), (9, 179864321), (13, 124521453), (21, 77084709), (39, 41507151), (63, 25694903), (91, 17788779), (117, 13835717), (273, 5929593), (719, 2251431), (819, 1976531), (2157, 750477), (2749, 588861), (5033, 321633), (6471, 250159), (8247, 196287), (9347, 173187), (15099, 107211), (19243, 84123), (24741, 65429), (28041, 57729), (35737, 45297)]