21277067

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1490

約数の個数: 16

約数和(自身を含む): 25473024

約数和(自身を除く): 4195957

約数列:

[1, 7, 31, 71, 217, 497, 1381, 2201, 9667, 15407, 42811, 98051, 299677, 686357, 3039581, 21277067]

約数ペア:

[(1, 21277067), (7, 3039581), (31, 686357), (71, 299677), (217, 98051), (497, 42811), (1381, 15407), (2201, 9667)]