19705995

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2939}}^1$

素因数の和:3099

約数の個数: 24

約数和(自身を含む): 34398000

約数和(自身を除く): 14692005

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 2939, 6705, 8817, 14695, 26451, 44085, 132255, 437911, 1313733, 2189555, 3941199, 6568665, 19705995]

約数ペア:

[(1, 19705995), (3, 6568665), (5, 3941199), (9, 2189555), (15, 1313733), (45, 437911), (149, 132255), (447, 44085), (745, 26451), (1341, 14695), (2235, 8817), (2939, 6705)]