212889663

素因数分解:

$3^2\times 7^2\times {\mathrm{482743}}^1$

素因数の和:482763

約数の個数: 18

約数和(自身を含む): 357713304

約数和(自身を除く): 144823641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 482743, 1448229, 3379201, 4344687, 10137603, 23654407, 30412809, 70963221, 212889663]

約数ペア:

[(1, 212889663), (3, 70963221), (7, 30412809), (9, 23654407), (21, 10137603), (49, 4344687), (63, 3379201), (147, 1448229), (441, 482743)]