2155977

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:674

約数の個数: 20

約数和(自身を含む): 3300880

約数和(自身を除く): 1144903

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 619, 1161, 1857, 3483, 5571, 16713, 26617, 50139, 79851, 239553, 718659, 2155977]

約数ペア:

[(1, 2155977), (3, 718659), (9, 239553), (27, 79851), (43, 50139), (81, 26617), (129, 16713), (387, 5571), (619, 3483), (1161, 1857)]