21132275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2617}}^1$

素因数の和:2663

約数の個数: 24

約数和(自身を含む): 29216880

約数和(自身を除く): 8084605

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 2617, 8075, 13085, 44489, 49723, 65425, 222445, 248615, 845291, 1112225, 1243075, 4226455, 21132275]

約数ペア:

[(1, 21132275), (5, 4226455), (17, 1243075), (19, 1112225), (25, 845291), (85, 248615), (95, 222445), (323, 65425), (425, 49723), (475, 44489), (1615, 13085), (2617, 8075)]