21202655

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5801}}^1$

素因数の和:5866

約数の個数: 16

約数和(自身を含む): 27571104

約数和(自身を除く): 6368449

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5801, 29005, 98617, 249443, 493085, 1247215, 4240531, 21202655]

約数ペア:

[(1, 21202655), (5, 4240531), (17, 1247215), (43, 493085), (85, 249443), (215, 98617), (731, 29005), (3655, 5801)]