20237565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4177}}^1$

素因数の和:4221

約数の個数: 32

約数和(自身を含む): 36097920

約数和(自身を除く): 15860355

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4177, 4845, 12531, 20885, 62655, 71009, 79363, 213027, 238089, 355045, 396815, 1065135, 1190445, 1349171, 4047513, 6745855, 20237565]

約数ペア:

[(1, 20237565), (3, 6745855), (5, 4047513), (15, 1349171), (17, 1190445), (19, 1065135), (51, 396815), (57, 355045), (85, 238089), (95, 213027), (255, 79363), (285, 71009), (323, 62655), (969, 20885), (1615, 12531), (4177, 4845)]