20774085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2053

約数の個数: 32

約数和(自身を含む): 36070272

約数和(自身を除く): 15296187

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 1987, 2091, 3485, 5961, 9935, 10455, 29805, 33779, 81467, 101337, 168895, 244401, 407335, 506685, 1222005, 1384939, 4154817, 6924695, 20774085]

約数ペア:

[(1, 20774085), (3, 6924695), (5, 4154817), (15, 1384939), (17, 1222005), (41, 506685), (51, 407335), (85, 244401), (123, 168895), (205, 101337), (255, 81467), (615, 33779), (697, 29805), (1987, 10455), (2091, 9935), (3485, 5961)]