26128809

素因数分解:

$3^2\times 7^2\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:530

約数の個数: 36

約数和(自身を含む): 44282160

約数和(自身を除く): 18153351

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 179, 331, 441, 537, 993, 1253, 1611, 2317, 2979, 3759, 6951, 8771, 11277, 16219, 20853, 26313, 48657, 59249, 78939, 145971, 177747, 414743, 533241, 1244229, 2903201, 3732687, 8709603, 26128809]

約数ペア:

[(1, 26128809), (3, 8709603), (7, 3732687), (9, 2903201), (21, 1244229), (49, 533241), (63, 414743), (147, 177747), (179, 145971), (331, 78939), (441, 59249), (537, 48657), (993, 26313), (1253, 20853), (1611, 16219), (2317, 11277), (2979, 8771), (3759, 6951)]