20811858

素因数分解:

$2^1\times 3^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{563}}^1$

素因数の和:730

約数の個数: 32

約数和(自身を含む): 42800832

約数和(自身を除く): 21988974

約数列:

[1, 2, 3, 6, 61, 101, 122, 183, 202, 303, 366, 563, 606, 1126, 1689, 3378, 6161, 12322, 18483, 34343, 36966, 56863, 68686, 103029, 113726, 170589, 206058, 341178, 3468643, 6937286, 10405929, 20811858]

約数ペア:

[(1, 20811858), (2, 10405929), (3, 6937286), (6, 3468643), (61, 341178), (101, 206058), (122, 170589), (183, 113726), (202, 103029), (303, 68686), (366, 56863), (563, 36966), (606, 34343), (1126, 18483), (1689, 12322), (3378, 6161)]