81217636

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{2837}}^1$

素因数の和:3279

約数の個数: 24

約数和(自身を含む): 150902136

約数和(自身を除く): 69684500

約数列:

[1, 2, 4, 17, 34, 68, 421, 842, 1684, 2837, 5674, 7157, 11348, 14314, 28628, 48229, 96458, 192916, 1194377, 2388754, 4777508, 20304409, 40608818, 81217636]

約数ペア:

[(1, 81217636), (2, 40608818), (4, 20304409), (17, 4777508), (34, 2388754), (68, 1194377), (421, 192916), (842, 96458), (1684, 48229), (2837, 28628), (5674, 14314), (7157, 11348)]