21965345

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{467}}^1$

素因数の和:904

約数の個数: 16

約数和(自身を含む): 27630720

約数和(自身を除く): 5665375

約数列:

[1, 5, 23, 115, 409, 467, 2045, 2335, 9407, 10741, 47035, 53705, 191003, 955015, 4393069, 21965345]

約数ペア:

[(1, 21965345), (5, 4393069), (23, 955015), (115, 191003), (409, 53705), (467, 47035), (2045, 10741), (2335, 9407)]