65438961

素因数分解:

$3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{2237}}^1$

素因数の和:2453

約数の個数: 24

約数和(自身を含む): 102052800

約数和(自身を除く): 36613839

約数列:

[1, 3, 7, 21, 49, 147, 199, 597, 1393, 2237, 4179, 6711, 9751, 15659, 29253, 46977, 109613, 328839, 445163, 1335489, 3116141, 9348423, 21812987, 65438961]

約数ペア:

[(1, 65438961), (3, 21812987), (7, 9348423), (21, 3116141), (49, 1335489), (147, 445163), (199, 328839), (597, 109613), (1393, 46977), (2237, 29253), (4179, 15659), (6711, 9751)]