21341275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 6781925

約数列:

[1, 5, 19, 25, 95, 179, 251, 475, 895, 1255, 3401, 4475, 4769, 6275, 17005, 23845, 44929, 85025, 119225, 224645, 853651, 1123225, 4268255, 21341275]

約数ペア:

[(1, 21341275), (5, 4268255), (19, 1123225), (25, 853651), (95, 224645), (179, 119225), (251, 85025), (475, 44929), (895, 23845), (1255, 17005), (3401, 6275), (4475, 4769)]