21824885

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 26843520

約数和(自身を除く): 5018635

約数列:

[1, 5, 61, 163, 305, 439, 815, 2195, 9943, 26779, 49715, 71557, 133895, 357785, 4364977, 21824885]

約数ペア:

[(1, 21824885), (5, 4364977), (61, 357785), (163, 133895), (305, 71557), (439, 49715), (815, 26779), (2195, 9943)]