20959605

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16061}}^1$

素因数の和:16101

約数の個数: 24

約数和(自身を含む): 37585080

約数和(自身を除く): 16625475

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16061, 48183, 80305, 144549, 240915, 465769, 722745, 1397307, 2328845, 4191921, 6986535, 20959605]

約数ペア:

[(1, 20959605), (3, 6986535), (5, 4191921), (9, 2328845), (15, 1397307), (29, 722745), (45, 465769), (87, 240915), (145, 144549), (261, 80305), (435, 48183), (1305, 16061)]