20799513

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8923}}^1$

素因数の和:8973

約数の個数: 24

約数和(自身を含む): 35267648

約数和(自身を除く): 14468135

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8923, 26769, 62461, 80307, 187383, 330151, 562149, 990453, 2311057, 2971359, 6933171, 20799513]

約数ペア:

[(1, 20799513), (3, 6933171), (7, 2971359), (9, 2311057), (21, 990453), (37, 562149), (63, 330151), (111, 187383), (259, 80307), (333, 62461), (777, 26769), (2331, 8923)]