20854935

素因数分解:

$3^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{641}}^1$

素因数の和:896

約数の個数: 32

約数和(自身を含む): 37287360

約数和(自身を除く): 16432425

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 241, 641, 723, 1205, 1923, 2169, 3205, 3615, 5769, 6507, 9615, 10845, 17307, 28845, 32535, 86535, 154481, 463443, 772405, 1390329, 2317215, 4170987, 6951645, 20854935]

約数ペア:

[(1, 20854935), (3, 6951645), (5, 4170987), (9, 2317215), (15, 1390329), (27, 772405), (45, 463443), (135, 154481), (241, 86535), (641, 32535), (723, 28845), (1205, 17307), (1923, 10845), (2169, 9615), (3205, 6507), (3615, 5769)]