20988036

素因数分解:

$2^2\times 3^2\times {\mathrm{181}}^1\times {\mathrm{3221}}^1$

素因数の和:3412

約数の個数: 36

約数和(自身を含む): 53362764

約数和(自身を除く): 32374728

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 181, 362, 543, 724, 1086, 1629, 2172, 3221, 3258, 6442, 6516, 9663, 12884, 19326, 28989, 38652, 57978, 115956, 583001, 1166002, 1749003, 2332004, 3498006, 5247009, 6996012, 10494018, 20988036]

約数ペア:

[(1, 20988036), (2, 10494018), (3, 6996012), (4, 5247009), (6, 3498006), (9, 2332004), (12, 1749003), (18, 1166002), (36, 583001), (181, 115956), (362, 57978), (543, 38652), (724, 28989), (1086, 19326), (1629, 12884), (2172, 9663), (3221, 6516), (3258, 6442)]