81821445

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1\times {\mathrm{571}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 134918784

約数和(自身を除く): 53097339

約数列:

[1, 3, 5, 15, 41, 123, 205, 233, 571, 615, 699, 1165, 1713, 2855, 3495, 8565, 9553, 23411, 28659, 47765, 70233, 117055, 133043, 143295, 351165, 399129, 665215, 1995645, 5454763, 16364289, 27273815, 81821445]

約数ペア:

[(1, 81821445), (3, 27273815), (5, 16364289), (15, 5454763), (41, 1995645), (123, 665215), (205, 399129), (233, 351165), (571, 143295), (615, 133043), (699, 117055), (1165, 70233), (1713, 47765), (2855, 28659), (3495, 23411), (8565, 9553)]