21301155

素因数分解:

$3^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{829}}^1$

素因数の和:1411

約数の個数: 24

約数和(自身を含む): 37031280

約数和(自身を除く): 15730125

約数列:

[1, 3, 5, 9, 15, 45, 571, 829, 1713, 2487, 2855, 4145, 5139, 7461, 8565, 12435, 25695, 37305, 473359, 1420077, 2366795, 4260231, 7100385, 21301155]

約数ペア:

[(1, 21301155), (3, 7100385), (5, 4260231), (9, 2366795), (15, 1420077), (45, 473359), (571, 37305), (829, 25695), (1713, 12435), (2487, 8565), (2855, 7461), (4145, 5139)]