81646866

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{71999}}^1$

素因数の和:72020

約数の個数: 40

約数和(自身を含む): 209088000

約数和(自身を除く): 127441134

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 71999, 143998, 215997, 431994, 503993, 647991, 1007986, 1295982, 1511979, 1943973, 3023958, 3887946, 4535937, 5831919, 9071874, 11663838, 13607811, 27215622, 40823433, 81646866]

約数ペア:

[(1, 81646866), (2, 40823433), (3, 27215622), (6, 13607811), (7, 11663838), (9, 9071874), (14, 5831919), (18, 4535937), (21, 3887946), (27, 3023958), (42, 1943973), (54, 1511979), (63, 1295982), (81, 1007986), (126, 647991), (162, 503993), (189, 431994), (378, 215997), (567, 143998), (1134, 71999)]