20508085503

素因数分解:

$3^2\times {\mathrm{43}}^2\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:469

約数の個数: 72

約数和(自身を含む): 31308554160

約数和(自身を除く): 10800468657

約数列:

[1, 3, 9, 43, 61, 89, 129, 183, 227, 267, 387, 549, 681, 801, 1849, 2043, 2623, 3827, 5429, 5547, 7869, 9761, 11481, 13847, 16287, 16641, 20203, 23607, 29283, 34443, 41541, 48861, 60609, 87849, 112789, 124623, 164561, 181827, 233447, 338367, 419723, 493683, 595421, 700341, 868729, 1015101, 1232383, 1259169, 1481049, 1786263, 2101023, 2606187, 3697149, 3777507, 5358789, 7818561, 10038221, 11091447, 25603103, 30114663, 37355347, 52992469, 76809309, 90343989, 112066041, 158977407, 230427927, 336198123, 476932221, 2278676167, 6836028501, 20508085503]

約数ペア:

[(1, 20508085503), (3, 6836028501), (9, 2278676167), (43, 476932221), (61, 336198123), (89, 230427927), (129, 158977407), (183, 112066041), (227, 90343989), (267, 76809309), (387, 52992469), (549, 37355347), (681, 30114663), (801, 25603103), (1849, 11091447), (2043, 10038221), (2623, 7818561), (3827, 5358789), (5429, 3777507), (5547, 3697149), (7869, 2606187), (9761, 2101023), (11481, 1786263), (13847, 1481049), (16287, 1259169), (16641, 1232383), (20203, 1015101), (23607, 868729), (29283, 700341), (34443, 595421), (41541, 493683), (48861, 419723), (60609, 338367), (87849, 233447), (112789, 181827), (124623, 164561)]