20808765

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9067}}^1$

素因数の和:9098

約数の個数: 32

約数和(自身を含む): 39173760

約数和(自身を除く): 18364995

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9067, 27201, 45335, 81603, 136005, 154139, 244809, 408015, 462417, 770695, 1224045, 1387251, 2312085, 4161753, 6936255, 20808765]

約数ペア:

[(1, 20808765), (3, 6936255), (5, 4161753), (9, 2312085), (15, 1387251), (17, 1224045), (27, 770695), (45, 462417), (51, 408015), (85, 244809), (135, 154139), (153, 136005), (255, 81603), (459, 45335), (765, 27201), (2295, 9067)]