399386421

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{2729}}^1$

素因数の和:2866

約数の個数: 48

約数和(自身を含む): 695036160

約数和(自身を除く): 295649739

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 101, 161, 207, 303, 483, 707, 909, 1449, 2121, 2323, 2729, 6363, 6969, 8187, 16261, 19103, 20907, 24561, 48783, 57309, 62767, 146349, 171927, 188301, 275629, 439369, 564903, 826887, 1318107, 1929403, 2480661, 3954321, 5788209, 6339467, 17364627, 19018401, 44376269, 57055203, 133128807, 399386421]

約数ペア:

[(1, 399386421), (3, 133128807), (7, 57055203), (9, 44376269), (21, 19018401), (23, 17364627), (63, 6339467), (69, 5788209), (101, 3954321), (161, 2480661), (207, 1929403), (303, 1318107), (483, 826887), (707, 564903), (909, 439369), (1449, 275629), (2121, 188301), (2323, 171927), (2729, 146349), (6363, 62767), (6969, 57309), (8187, 48783), (16261, 24561), (19103, 20907)]