19803555

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8629}}^1$

素因数の和:8660

約数の個数: 32

約数和(自身を含む): 37281600

約数和(自身を除く): 17478045

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8629, 25887, 43145, 77661, 129435, 146693, 232983, 388305, 440079, 733465, 1164915, 1320237, 2200395, 3960711, 6601185, 19803555]

約数ペア:

[(1, 19803555), (3, 6601185), (5, 3960711), (9, 2200395), (15, 1320237), (17, 1164915), (27, 733465), (45, 440079), (51, 388305), (85, 232983), (135, 146693), (153, 129435), (255, 77661), (459, 43145), (765, 25887), (2295, 8629)]