20210935675

素因数分解:

$5^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{78193}}^1$

素因数の和:78428

約数の個数: 36

約数和(自身を含む): 29291785176

約数和(自身を除く): 9080849501

約数列:

[1, 5, 7, 25, 35, 49, 175, 211, 245, 1055, 1225, 1477, 5275, 7385, 10339, 36925, 51695, 78193, 258475, 390965, 547351, 1954825, 2736755, 3831457, 13683775, 16498723, 19157285, 82493615, 95786425, 115491061, 412468075, 577455305, 808437427, 2887276525, 4042187135, 20210935675]

約数ペア:

[(1, 20210935675), (5, 4042187135), (7, 2887276525), (25, 808437427), (35, 577455305), (49, 412468075), (175, 115491061), (211, 95786425), (245, 82493615), (1055, 19157285), (1225, 16498723), (1477, 13683775), (5275, 3831457), (7385, 2736755), (10339, 1954825), (36925, 547351), (51695, 390965), (78193, 258475)]