18708578

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1153}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 34343040

約数和(自身を除く): 15634462

約数列:

[1, 2, 7, 14, 19, 38, 61, 122, 133, 266, 427, 854, 1153, 1159, 2306, 2318, 8071, 8113, 16142, 16226, 21907, 43814, 70333, 140666, 153349, 306698, 492331, 984662, 1336327, 2672654, 9354289, 18708578]

約数ペア:

[(1, 18708578), (2, 9354289), (7, 2672654), (14, 1336327), (19, 984662), (38, 492331), (61, 306698), (122, 153349), (133, 140666), (266, 70333), (427, 43814), (854, 21907), (1153, 16226), (1159, 16142), (2306, 8113), (2318, 8071)]