21995705

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{11251}}^1$

素因数の和:11296

約数の個数: 16

約数和(自身を含む): 29165184

約数和(自身を除く): 7169479

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 11251, 56255, 191267, 258773, 956335, 1293865, 4399141, 21995705]

約数ペア:

[(1, 21995705), (5, 4399141), (17, 1293865), (23, 956335), (85, 258773), (115, 191267), (391, 56255), (1955, 11251)]