20474205

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4723}}^1$

素因数の和:4765

約数の個数: 24

約数和(自身を含む): 34806432

約数和(自身を除く): 14332227

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4723, 14169, 23615, 70845, 80291, 240873, 401455, 1204365, 1364947, 4094841, 6824735, 20474205]

約数ペア:

[(1, 20474205), (3, 6824735), (5, 4094841), (15, 1364947), (17, 1204365), (51, 401455), (85, 240873), (255, 80291), (289, 70845), (867, 23615), (1445, 14169), (4335, 4723)]