20437977

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{283}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 33080320

約数和(自身を除く): 12642343

約数列:

[1, 3, 7, 19, 21, 57, 133, 181, 283, 399, 543, 849, 1267, 1981, 3439, 3801, 5377, 5943, 10317, 16131, 24073, 37639, 51223, 72219, 112917, 153669, 358561, 973237, 1075683, 2919711, 6812659, 20437977]

約数ペア:

[(1, 20437977), (3, 6812659), (7, 2919711), (19, 1075683), (21, 973237), (57, 358561), (133, 153669), (181, 112917), (283, 72219), (399, 51223), (543, 37639), (849, 24073), (1267, 16131), (1981, 10317), (3439, 5943), (3801, 5377)]