21809916

素因数分解:

$2^2\times 3^2\times {\mathrm{571}}^1\times {\mathrm{1061}}^1$

素因数の和:1642

約数の個数: 36

約数和(自身を含む): 55279224

約数和(自身を除く): 33469308

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 571, 1061, 1142, 1713, 2122, 2284, 3183, 3426, 4244, 5139, 6366, 6852, 9549, 10278, 12732, 19098, 20556, 38196, 605831, 1211662, 1817493, 2423324, 3634986, 5452479, 7269972, 10904958, 21809916]

約数ペア:

[(1, 21809916), (2, 10904958), (3, 7269972), (4, 5452479), (6, 3634986), (9, 2423324), (12, 1817493), (18, 1211662), (36, 605831), (571, 38196), (1061, 20556), (1142, 19098), (1713, 12732), (2122, 10278), (2284, 9549), (3183, 6852), (3426, 6366), (4244, 5139)]