20613765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{479}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 14407035

約数列:

[1, 3, 5, 15, 19, 57, 95, 151, 285, 453, 479, 755, 1437, 2265, 2395, 2869, 7185, 8607, 9101, 14345, 27303, 43035, 45505, 72329, 136515, 216987, 361645, 1084935, 1374251, 4122753, 6871255, 20613765]

約数ペア:

[(1, 20613765), (3, 6871255), (5, 4122753), (15, 1374251), (19, 1084935), (57, 361645), (95, 216987), (151, 136515), (285, 72329), (453, 45505), (479, 43035), (755, 27303), (1437, 14345), (2265, 9101), (2395, 8607), (2869, 7185)]