21724365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3011}}^1$

素因数の和:3069

約数の個数: 32

約数和(自身を含む): 38457216

約数和(自身を除く): 16732851

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 3011, 7215, 9033, 15055, 39143, 45165, 111407, 117429, 195715, 334221, 557035, 587145, 1448291, 1671105, 4344873, 7241455, 21724365]

約数ペア:

[(1, 21724365), (3, 7241455), (5, 4344873), (13, 1671105), (15, 1448291), (37, 587145), (39, 557035), (65, 334221), (111, 195715), (185, 117429), (195, 111407), (481, 45165), (555, 39143), (1443, 15055), (2405, 9033), (3011, 7215)]