221003405

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1087}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 313552896

約数和(自身を除く): 92549491

約数列:

[1, 5, 7, 35, 37, 157, 185, 259, 785, 1087, 1099, 1295, 5435, 5495, 5809, 7609, 29045, 38045, 40219, 40663, 170659, 201095, 203315, 281533, 853295, 1194613, 1407665, 5973065, 6314383, 31571915, 44200681, 221003405]

約数ペア:

[(1, 221003405), (5, 44200681), (7, 31571915), (35, 6314383), (37, 5973065), (157, 1407665), (185, 1194613), (259, 853295), (785, 281533), (1087, 203315), (1099, 201095), (1295, 170659), (5435, 40663), (5495, 40219), (5809, 38045), (7609, 29045)]