39720789

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2917}}^1$

素因数の和:3029

約数の個数: 24

約数和(自身を含む): 61453080

約数和(自身を除く): 21732291

約数列:

[1, 3, 9, 17, 51, 89, 153, 267, 801, 1513, 2917, 4539, 8751, 13617, 26253, 49589, 148767, 259613, 446301, 778839, 2336517, 4413421, 13240263, 39720789]

約数ペア:

[(1, 39720789), (3, 13240263), (9, 4413421), (17, 2336517), (51, 778839), (89, 446301), (153, 259613), (267, 148767), (801, 49589), (1513, 26253), (2917, 13617), (4539, 8751)]