21947425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{457}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 29134296

約数和(自身を除く): 7186871

約数列:

[1, 5, 17, 25, 85, 113, 425, 457, 565, 1921, 2285, 2825, 7769, 9605, 11425, 38845, 48025, 51641, 194225, 258205, 877897, 1291025, 4389485, 21947425]

約数ペア:

[(1, 21947425), (5, 4389485), (17, 1291025), (25, 877897), (85, 258205), (113, 194225), (425, 51641), (457, 48025), (565, 38845), (1921, 11425), (2285, 9605), (2825, 7769)]