20995986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{18713}}^1$

素因数の和:18746

約数の個数: 32

約数和(自身を含む): 48506688

約数和(自身を除く): 27510702

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 66, 102, 187, 374, 561, 1122, 18713, 37426, 56139, 112278, 205843, 318121, 411686, 617529, 636242, 954363, 1235058, 1908726, 3499331, 6998662, 10497993, 20995986]

約数ペア:

[(1, 20995986), (2, 10497993), (3, 6998662), (6, 3499331), (11, 1908726), (17, 1235058), (22, 954363), (33, 636242), (34, 617529), (51, 411686), (66, 318121), (102, 205843), (187, 112278), (374, 56139), (561, 37426), (1122, 18713)]