261325995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{19597}}^1$

素因数の和:19739

約数の個数: 32

約数和(自身を含む): 481640448

約数和(自身を除く): 220314453

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 127, 381, 635, 889, 1905, 2667, 4445, 13335, 19597, 58791, 97985, 137179, 293955, 411537, 685895, 2057685, 2488819, 7466457, 12444095, 17421733, 37332285, 52265199, 87108665, 261325995]

約数ペア:

[(1, 261325995), (3, 87108665), (5, 52265199), (7, 37332285), (15, 17421733), (21, 12444095), (35, 7466457), (105, 2488819), (127, 2057685), (381, 685895), (635, 411537), (889, 293955), (1905, 137179), (2667, 97985), (4445, 58791), (13335, 19597)]