28756581

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3691}}^1$

素因数の和:3761

約数の個数: 24

約数和(自身を含む): 45455904

約数和(自身を除く): 16699323

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 3691, 7791, 11073, 25837, 77511, 180859, 195623, 542577, 586869, 1369361, 4108083, 9585527, 28756581]

約数ペア:

[(1, 28756581), (3, 9585527), (7, 4108083), (21, 1369361), (49, 586869), (53, 542577), (147, 195623), (159, 180859), (371, 77511), (1113, 25837), (2597, 11073), (3691, 7791)]