21398348

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2647}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 39148032

約数和(自身を除く): 17749684

約数列:

[1, 2, 4, 43, 47, 86, 94, 172, 188, 2021, 2647, 4042, 5294, 8084, 10588, 113821, 124409, 227642, 248818, 455284, 497636, 5349587, 10699174, 21398348]

約数ペア:

[(1, 21398348), (2, 10699174), (4, 5349587), (43, 497636), (47, 455284), (86, 248818), (94, 227642), (172, 124409), (188, 113821), (2021, 10588), (2647, 8084), (4042, 5294)]