2197521

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 3407040

約数和(自身を除く): 1209519

約数列:

[1, 3, 9, 19, 57, 71, 171, 181, 213, 543, 639, 1349, 1629, 3439, 4047, 10317, 12141, 12851, 30951, 38553, 115659, 244169, 732507, 2197521]

約数ペア:

[(1, 2197521), (3, 732507), (9, 244169), (19, 115659), (57, 38553), (71, 30951), (171, 12851), (181, 12141), (213, 10317), (543, 4047), (639, 3439), (1349, 1629)]