64820817

素因数分解:

$3^4\times {\mathrm{349}}^1\times {\mathrm{2293}}^1$

素因数の和:2654

約数の個数: 20

約数和(自身を含む): 97150900

約数和(自身を除く): 32330083

約数列:

[1, 3, 9, 27, 81, 349, 1047, 2293, 3141, 6879, 9423, 20637, 28269, 61911, 185733, 800257, 2400771, 7202313, 21606939, 64820817]

約数ペア:

[(1, 64820817), (3, 21606939), (9, 7202313), (27, 2400771), (81, 800257), (349, 185733), (1047, 61911), (2293, 28269), (3141, 20637), (6879, 9423)]