20197395

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3229}}^1$

素因数の和:3379

約数の個数: 24

約数和(自身を含む): 35271600

約数和(自身を除く): 15074205

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3229, 6255, 9687, 16145, 29061, 48435, 145305, 448831, 1346493, 2244155, 4039479, 6732465, 20197395]

約数ペア:

[(1, 20197395), (3, 6732465), (5, 4039479), (9, 2244155), (15, 1346493), (45, 448831), (139, 145305), (417, 48435), (695, 29061), (1251, 16145), (2085, 9687), (3229, 6255)]