21104397713

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1\times {\mathrm{9547}}^1$

素因数の和:9813

約数の個数: 32

約数和(自身を含む): 25459703808

約数和(自身を除く): 4355306095

約数列:

[1, 7, 31, 61, 167, 217, 427, 1169, 1891, 5177, 9547, 10187, 13237, 36239, 66829, 71309, 295957, 315797, 582367, 1594349, 2071699, 2210579, 4076569, 11160443, 18053377, 49424819, 97255289, 126373639, 345973733, 680787023, 3014913959, 21104397713]

約数ペア:

[(1, 21104397713), (7, 3014913959), (31, 680787023), (61, 345973733), (167, 126373639), (217, 97255289), (427, 49424819), (1169, 18053377), (1891, 11160443), (5177, 4076569), (9547, 2210579), (10187, 2071699), (13237, 1594349), (36239, 582367), (66829, 315797), (71309, 295957)]