20991882

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{541}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 43706880

約数和(自身を除く): 22714998

約数列:

[1, 2, 3, 6, 29, 58, 87, 174, 223, 446, 541, 669, 1082, 1338, 1623, 3246, 6467, 12934, 15689, 19401, 31378, 38802, 47067, 94134, 120643, 241286, 361929, 723858, 3498647, 6997294, 10495941, 20991882]

約数ペア:

[(1, 20991882), (2, 10495941), (3, 6997294), (6, 3498647), (29, 723858), (58, 361929), (87, 241286), (174, 120643), (223, 94134), (446, 47067), (541, 38802), (669, 31378), (1082, 19401), (1338, 15689), (1623, 12934), (3246, 6467)]