20554011

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1291}}^1$

素因数の和:1387

約数の個数: 24

約数和(自身を含む): 31240560

約数和(自身を除く): 10686549

約数列:

[1, 3, 9, 29, 61, 87, 183, 261, 549, 1291, 1769, 3873, 5307, 11619, 15921, 37439, 78751, 112317, 236253, 336951, 708759, 2283779, 6851337, 20554011]

約数ペア:

[(1, 20554011), (3, 6851337), (9, 2283779), (29, 708759), (61, 336951), (87, 236253), (183, 112317), (261, 78751), (549, 37439), (1291, 15921), (1769, 11619), (3873, 5307)]