21605662

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15679}}^1$

素因数の和:15747

約数の個数: 16

約数和(自身を含む): 35562240

約数和(自身を除く): 13956578

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15679, 31358, 203827, 407654, 830987, 1661974, 10802831, 21605662]

約数ペア:

[(1, 21605662), (2, 10802831), (13, 1661974), (26, 830987), (53, 407654), (106, 203827), (689, 31358), (1378, 15679)]