81139215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16747}}^1$

素因数の和:16791

約数の個数: 32

約数和(自身を含む): 144702720

約数和(自身を除く): 63563505

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4845, 16747, 50241, 83735, 251205, 284699, 318193, 854097, 954579, 1423495, 1590965, 4270485, 4772895, 5409281, 16227843, 27046405, 81139215]

約数ペア:

[(1, 81139215), (3, 27046405), (5, 16227843), (15, 5409281), (17, 4772895), (19, 4270485), (51, 1590965), (57, 1423495), (85, 954579), (95, 854097), (255, 318193), (285, 284699), (323, 251205), (969, 83735), (1615, 50241), (4845, 16747)]