87620281

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 106314120

約数和(自身を除く): 18693839

約数列:

[1, 7, 29, 49, 197, 203, 313, 1379, 1421, 2191, 5713, 9077, 9653, 15337, 39991, 61661, 63539, 279937, 431627, 444773, 1788169, 3021389, 12517183, 87620281]

約数ペア:

[(1, 87620281), (7, 12517183), (29, 3021389), (49, 1788169), (197, 444773), (203, 431627), (313, 279937), (1379, 63539), (1421, 61661), (2191, 39991), (5713, 15337), (9077, 9653)]