81389826

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{215317}}^1$

素因数の和:215335

約数の個数: 32

約数和(自身を含む): 206705280

約数和(自身を除く): 125315454

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 215317, 430634, 645951, 1291902, 1507219, 1937853, 3014438, 3875706, 4521657, 5813559, 9043314, 11627118, 13564971, 27129942, 40694913, 81389826]

約数ペア:

[(1, 81389826), (2, 40694913), (3, 27129942), (6, 13564971), (7, 11627118), (9, 9043314), (14, 5813559), (18, 4521657), (21, 3875706), (27, 3014438), (42, 1937853), (54, 1507219), (63, 1291902), (126, 645951), (189, 430634), (378, 215317)]