218036985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{1871}}^1$

素因数の和:2353

約数の個数: 32

約数和(自身を含む): 370386432

約数和(自身を除く): 152349447

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 457, 1371, 1871, 2285, 5613, 6855, 7769, 9355, 23307, 28065, 31807, 38845, 95421, 116535, 159035, 477105, 855047, 2565141, 4275235, 12825705, 14535799, 43607397, 72678995, 218036985]

約数ペア:

[(1, 218036985), (3, 72678995), (5, 43607397), (15, 14535799), (17, 12825705), (51, 4275235), (85, 2565141), (255, 855047), (457, 477105), (1371, 159035), (1871, 116535), (2285, 95421), (5613, 38845), (6855, 31807), (7769, 28065), (9355, 23307)]