245413071

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{178223}}^1$

素因数の和:178252

約数の個数: 20

約数和(自身を含む): 388171872

約数和(自身を除く): 142758801

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 178223, 534669, 1604007, 3029791, 4812021, 9089373, 14436063, 27268119, 81804357, 245413071]

約数ペア:

[(1, 245413071), (3, 81804357), (9, 27268119), (17, 14436063), (27, 9089373), (51, 4812021), (81, 3029791), (153, 1604007), (459, 534669), (1377, 178223)]