213115585

素因数分解:

$5^1\times {\mathrm{23}}^2\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 269355240

約数和(自身を除く): 56239655

約数列:

[1, 5, 23, 115, 197, 409, 529, 985, 2045, 2645, 4531, 9407, 22655, 47035, 80573, 104213, 216361, 402865, 521065, 1081805, 1853179, 9265895, 42623117, 213115585]

約数ペア:

[(1, 213115585), (5, 42623117), (23, 9265895), (115, 1853179), (197, 1081805), (409, 521065), (529, 402865), (985, 216361), (2045, 104213), (2645, 80573), (4531, 47035), (9407, 22655)]