21859389

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{1279}}^1$

素因数の和:1502

約数の個数: 20

約数和(自身を含む): 32834560

約数和(自身を除く): 10975171

約数列:

[1, 3, 9, 27, 81, 211, 633, 1279, 1899, 3837, 5697, 11511, 17091, 34533, 103599, 269869, 809607, 2428821, 7286463, 21859389]

約数ペア:

[(1, 21859389), (3, 7286463), (9, 2428821), (27, 809607), (81, 269869), (211, 103599), (633, 34533), (1279, 17091), (1899, 11511), (3837, 5697)]