16805205

素因数分解:

$3^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{443}}^1$

素因数の和:738

約数の個数: 32

約数和(自身を含む): 30049920

約数和(自身を除く): 13244715

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 281, 443, 843, 1329, 1405, 2215, 2529, 3987, 4215, 6645, 7587, 11961, 12645, 19935, 37935, 59805, 124483, 373449, 622415, 1120347, 1867245, 3361041, 5601735, 16805205]

約数ペア:

[(1, 16805205), (3, 5601735), (5, 3361041), (9, 1867245), (15, 1120347), (27, 622415), (45, 373449), (135, 124483), (281, 59805), (443, 37935), (843, 19935), (1329, 12645), (1405, 11961), (2215, 7587), (2529, 6645), (3987, 4215)]