21327265

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{3023}}^1$

素因数の和:3128

約数の個数: 16

約数和(自身を含む): 27433728

約数和(自身を除く): 6106463

約数列:

[1, 5, 17, 83, 85, 415, 1411, 3023, 7055, 15115, 51391, 250909, 256955, 1254545, 4265453, 21327265]

約数ペア:

[(1, 21327265), (5, 4265453), (17, 1254545), (83, 256955), (85, 250909), (415, 51391), (1411, 15115), (3023, 7055)]