21356664

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{127123}}^1$

素因数の和:127139

約数の個数: 32

約数和(自身を含む): 61019520

約数和(自身を除く): 39662856

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 127123, 254246, 381369, 508492, 762738, 889861, 1016984, 1525476, 1779722, 2669583, 3050952, 3559444, 5339166, 7118888, 10678332, 21356664]

約数ペア:

[(1, 21356664), (2, 10678332), (3, 7118888), (4, 5339166), (6, 3559444), (7, 3050952), (8, 2669583), (12, 1779722), (14, 1525476), (21, 1016984), (24, 889861), (28, 762738), (42, 508492), (56, 381369), (84, 254246), (168, 127123)]