21099405

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{733}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 35936640

約数和(自身を除く): 14837235

約数列:

[1, 3, 5, 15, 19, 57, 95, 101, 285, 303, 505, 733, 1515, 1919, 2199, 3665, 5757, 9595, 10995, 13927, 28785, 41781, 69635, 74033, 208905, 222099, 370165, 1110495, 1406627, 4219881, 7033135, 21099405]

約数ペア:

[(1, 21099405), (3, 7033135), (5, 4219881), (15, 1406627), (19, 1110495), (57, 370165), (95, 222099), (101, 208905), (285, 74033), (303, 69635), (505, 41781), (733, 28785), (1515, 13927), (1919, 10995), (2199, 9595), (3665, 5757)]