217877525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{601}}^1\times {\mathrm{853}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 286872264

約数和(自身を除く): 68994739

約数列:

[1, 5, 17, 25, 85, 425, 601, 853, 3005, 4265, 10217, 14501, 15025, 21325, 51085, 72505, 255425, 362525, 512653, 2563265, 8715101, 12816325, 43575505, 217877525]

約数ペア:

[(1, 217877525), (5, 43575505), (17, 12816325), (25, 8715101), (85, 2563265), (425, 512653), (601, 362525), (853, 255425), (3005, 72505), (4265, 51085), (10217, 21325), (14501, 15025)]