21338475

素因数分解:

$3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2659}}^1$

素因数の和:2779

約数の個数: 24

約数和(自身を含む): 35622720

約数和(自身を除く): 14284245

約数列:

[1, 3, 5, 15, 25, 75, 107, 321, 535, 1605, 2659, 2675, 7977, 8025, 13295, 39885, 66475, 199425, 284513, 853539, 1422565, 4267695, 7112825, 21338475]

約数ペア:

[(1, 21338475), (3, 7112825), (5, 4267695), (15, 1422565), (25, 853539), (75, 284513), (107, 199425), (321, 66475), (535, 39885), (1605, 13295), (2659, 8025), (2675, 7977)]