28945683

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 20194317

約数列:

[1, 3, 9, 13, 19, 29, 39, 57, 87, 117, 171, 247, 261, 377, 449, 551, 741, 1131, 1347, 1653, 2223, 3393, 4041, 4959, 5837, 7163, 8531, 13021, 17511, 21489, 25593, 39063, 52533, 64467, 76779, 110903, 117189, 169273, 247399, 332709, 507819, 742197, 998127, 1523457, 2226591, 3216187, 9648561, 28945683]

約数ペア:

[(1, 28945683), (3, 9648561), (9, 3216187), (13, 2226591), (19, 1523457), (29, 998127), (39, 742197), (57, 507819), (87, 332709), (117, 247399), (171, 169273), (247, 117189), (261, 110903), (377, 76779), (449, 64467), (551, 52533), (741, 39063), (1131, 25593), (1347, 21489), (1653, 17511), (2223, 13021), (3393, 8531), (4041, 7163), (4959, 5837)]