20989098

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1031}}^1$

素因数の和:1084

約数の個数: 64

約数和(自身を含む): 52012800

約数和(自身を除く): 31023702

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 29, 39, 54, 58, 78, 87, 117, 174, 234, 261, 351, 377, 522, 702, 754, 783, 1031, 1131, 1566, 2062, 2262, 3093, 3393, 6186, 6786, 9279, 10179, 13403, 18558, 20358, 26806, 27837, 29899, 40209, 55674, 59798, 80418, 89697, 120627, 179394, 241254, 269091, 361881, 388687, 538182, 723762, 777374, 807273, 1166061, 1614546, 2332122, 3498183, 6996366, 10494549, 20989098]

約数ペア:

[(1, 20989098), (2, 10494549), (3, 6996366), (6, 3498183), (9, 2332122), (13, 1614546), (18, 1166061), (26, 807273), (27, 777374), (29, 723762), (39, 538182), (54, 388687), (58, 361881), (78, 269091), (87, 241254), (117, 179394), (174, 120627), (234, 89697), (261, 80418), (351, 59798), (377, 55674), (522, 40209), (702, 29899), (754, 27837), (783, 26806), (1031, 20358), (1131, 18558), (1566, 13403), (2062, 10179), (2262, 9279), (3093, 6786), (3393, 6186)]