20413605

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31649}}^1$

素因数の和:31700

約数の個数: 16

約数和(自身を含む): 33422400

約数和(自身を除く): 13008795

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31649, 94947, 158245, 474735, 1360907, 4082721, 6804535, 20413605]

約数ペア:

[(1, 20413605), (3, 6804535), (5, 4082721), (15, 1360907), (43, 474735), (129, 158245), (215, 94947), (645, 31649)]