21302224

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{78317}}^1$

素因数の和:78342

約数の個数: 20

約数和(自身を含む): 43701444

約数和(自身を除く): 22399220

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 78317, 156634, 313268, 626536, 1253072, 1331389, 2662778, 5325556, 10651112, 21302224]

約数ペア:

[(1, 21302224), (2, 10651112), (4, 5325556), (8, 2662778), (16, 1331389), (17, 1253072), (34, 626536), (68, 313268), (136, 156634), (272, 78317)]