1640646

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:493

約数の個数: 48

約数和(自身を含む): 4212000

約数和(自身を除く): 2571354

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 449, 522, 609, 898, 1218, 1347, 1827, 2694, 3143, 3654, 4041, 6286, 8082, 9429, 13021, 18858, 26042, 28287, 39063, 56574, 78126, 91147, 117189, 182294, 234378, 273441, 546882, 820323, 1640646]

約数ペア:

[(1, 1640646), (2, 820323), (3, 546882), (6, 273441), (7, 234378), (9, 182294), (14, 117189), (18, 91147), (21, 78126), (29, 56574), (42, 39063), (58, 28287), (63, 26042), (87, 18858), (126, 13021), (174, 9429), (203, 8082), (261, 6286), (406, 4041), (449, 3654), (522, 3143), (609, 2694), (898, 1827), (1218, 1347)]