21419805

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3019}}^1$

素因数の和:3081

約数の個数: 32

約数和(自身を含む): 38269440

約数和(自身を除く): 16849635

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 129, 165, 215, 473, 645, 1419, 2365, 3019, 7095, 9057, 15095, 33209, 45285, 99627, 129817, 166045, 389451, 498135, 649085, 1427987, 1947255, 4283961, 7139935, 21419805]

約数ペア:

[(1, 21419805), (3, 7139935), (5, 4283961), (11, 1947255), (15, 1427987), (33, 649085), (43, 498135), (55, 389451), (129, 166045), (165, 129817), (215, 99627), (473, 45285), (645, 33209), (1419, 15095), (2365, 9057), (3019, 7095)]