21075699

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5231}}^1$

素因数の和:5330

約数の個数: 16

約数和(自身を含む): 30136320

約数和(自身を除く): 9060621

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5231, 15693, 88927, 266781, 413249, 1239747, 7025233, 21075699]

約数ペア:

[(1, 21075699), (3, 7025233), (17, 1239747), (51, 413249), (79, 266781), (237, 88927), (1343, 15693), (4029, 5231)]