721951623

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{2141}}^1$

素因数の和:2357

約数の個数: 40

約数和(自身を含む): 1132106976

約数和(自身を除く): 410155353

約数列:

[1, 3, 9, 23, 27, 69, 81, 181, 207, 543, 621, 1629, 1863, 2141, 4163, 4887, 6423, 12489, 14661, 19269, 37467, 49243, 57807, 112401, 147729, 173421, 337203, 387521, 443187, 1162563, 1329561, 3487689, 3988683, 8912983, 10463067, 26738949, 31389201, 80216847, 240650541, 721951623]

約数ペア:

[(1, 721951623), (3, 240650541), (9, 80216847), (23, 31389201), (27, 26738949), (69, 10463067), (81, 8912983), (181, 3988683), (207, 3487689), (543, 1329561), (621, 1162563), (1629, 443187), (1863, 387521), (2141, 337203), (4163, 173421), (4887, 147729), (6423, 112401), (12489, 57807), (14661, 49243), (19269, 37467)]