261400743

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{601}}^1$

素因数の和:880

約数の個数: 32

約数和(自身を含む): 394430400

約数和(自身を除く): 133029657

約数列:

[1, 3, 9, 27, 89, 181, 267, 543, 601, 801, 1629, 1803, 2403, 4887, 5409, 16109, 16227, 48327, 53489, 108781, 144981, 160467, 326343, 434943, 481401, 979029, 1444203, 2937087, 9681509, 29044527, 87133581, 261400743]

約数ペア:

[(1, 261400743), (3, 87133581), (9, 29044527), (27, 9681509), (89, 2937087), (181, 1444203), (267, 979029), (543, 481401), (601, 434943), (801, 326343), (1629, 160467), (1803, 144981), (2403, 108781), (4887, 53489), (5409, 48327), (16109, 16227)]