2557191

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:88

約数の個数: 64

約数和(自身を含む): 4838400

約数和(自身を除く): 2281209

約数列:

[1, 3, 7, 13, 17, 19, 21, 29, 39, 51, 57, 87, 91, 119, 133, 203, 221, 247, 273, 323, 357, 377, 399, 493, 551, 609, 663, 741, 969, 1131, 1479, 1547, 1653, 1729, 2261, 2639, 3451, 3857, 4199, 4641, 5187, 6409, 6783, 7163, 7917, 9367, 10353, 11571, 12597, 19227, 21489, 28101, 29393, 44863, 50141, 65569, 88179, 121771, 134589, 150423, 196707, 365313, 852397, 2557191]

約数ペア:

[(1, 2557191), (3, 852397), (7, 365313), (13, 196707), (17, 150423), (19, 134589), (21, 121771), (29, 88179), (39, 65569), (51, 50141), (57, 44863), (87, 29393), (91, 28101), (119, 21489), (133, 19227), (203, 12597), (221, 11571), (247, 10353), (273, 9367), (323, 7917), (357, 7163), (377, 6783), (399, 6409), (493, 5187), (551, 4641), (609, 4199), (663, 3857), (741, 3451), (969, 2639), (1131, 2261), (1479, 1729), (1547, 1653)]