20558655

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 18281601

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 113, 117, 195, 311, 339, 565, 585, 933, 1017, 1469, 1555, 1695, 2799, 4043, 4407, 4665, 5085, 7345, 12129, 13221, 13995, 20215, 22035, 35143, 36387, 60645, 66105, 105429, 175715, 181935, 316287, 456859, 527145, 1370577, 1581435, 2284295, 4111731, 6852885, 20558655]

約数ペア:

[(1, 20558655), (3, 6852885), (5, 4111731), (9, 2284295), (13, 1581435), (15, 1370577), (39, 527145), (45, 456859), (65, 316287), (113, 181935), (117, 175715), (195, 105429), (311, 66105), (339, 60645), (565, 36387), (585, 35143), (933, 22035), (1017, 20215), (1469, 13995), (1555, 13221), (1695, 12129), (2799, 7345), (4043, 5085), (4407, 4665)]