18223803

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 30270240

約数和(自身を除く): 12046437

約数列:

[1, 3, 9, 13, 29, 39, 41, 87, 117, 123, 131, 261, 369, 377, 393, 533, 1131, 1179, 1189, 1599, 1703, 3393, 3567, 3799, 4797, 5109, 5371, 10701, 11397, 15327, 15457, 16113, 34191, 46371, 48339, 49387, 69823, 139113, 148161, 155759, 209469, 444483, 467277, 628407, 1401831, 2024867, 6074601, 18223803]

約数ペア:

[(1, 18223803), (3, 6074601), (9, 2024867), (13, 1401831), (29, 628407), (39, 467277), (41, 444483), (87, 209469), (117, 155759), (123, 148161), (131, 139113), (261, 69823), (369, 49387), (377, 48339), (393, 46371), (533, 34191), (1131, 16113), (1179, 15457), (1189, 15327), (1599, 11397), (1703, 10701), (3393, 5371), (3567, 5109), (3799, 4797)]