21351935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16879}}^1$

素因数の和:16918

約数の個数: 16

約数和(自身を含む): 29168640

約数和(自身を除く): 7816705

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16879, 84395, 185669, 388217, 928345, 1941085, 4270387, 21351935]

約数ペア:

[(1, 21351935), (5, 4270387), (11, 1941085), (23, 928345), (55, 388217), (115, 185669), (253, 84395), (1265, 16879)]