972649215

素因数分解:

$3^4\times 5^1\times {\mathrm{2401603}}^1$

素因数の和:2401620

約数の個数: 20

約数和(自身を含む): 1743564504

約数和(自身を除く): 770915289

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2401603, 7204809, 12008015, 21614427, 36024045, 64843281, 108072135, 194529843, 324216405, 972649215]

約数ペア:

[(1, 972649215), (3, 324216405), (5, 194529843), (9, 108072135), (15, 64843281), (27, 36024045), (45, 21614427), (81, 12008015), (135, 7204809), (405, 2401603)]