21313071

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1481}}^1$

素因数の和:1544

約数の個数: 32

約数和(自身を含む): 34856640

約数和(自身を除く): 13543569

約数列:

[1, 3, 9, 13, 27, 39, 41, 117, 123, 351, 369, 533, 1107, 1481, 1599, 4443, 4797, 13329, 14391, 19253, 39987, 57759, 60721, 173277, 182163, 519831, 546489, 789373, 1639467, 2368119, 7104357, 21313071]

約数ペア:

[(1, 21313071), (3, 7104357), (9, 2368119), (13, 1639467), (27, 789373), (39, 546489), (41, 519831), (117, 182163), (123, 173277), (351, 60721), (369, 57759), (533, 39987), (1107, 19253), (1481, 14391), (1599, 13329), (4443, 4797)]