19840785

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2683}}^1$

素因数の和:2737

約数の個数: 32

約数和(自身を含む): 34784640

約数和(自身を除く): 14943855

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2683, 7395, 8049, 13415, 40245, 45611, 77807, 136833, 228055, 233421, 389035, 684165, 1167105, 1322719, 3968157, 6613595, 19840785]

約数ペア:

[(1, 19840785), (3, 6613595), (5, 3968157), (15, 1322719), (17, 1167105), (29, 684165), (51, 389035), (85, 233421), (87, 228055), (145, 136833), (255, 77807), (435, 45611), (493, 40245), (1479, 13415), (2465, 8049), (2683, 7395)]