20562381

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4597}}^1$

素因数の和:4681

約数の個数: 24

約数和(自身を含む): 34429824

約数和(自身を除く): 13867443

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 4597, 13791, 32179, 41373, 96537, 289611, 326387, 979161, 2284709, 2937483, 6854127, 20562381]

約数ペア:

[(1, 20562381), (3, 6854127), (7, 2937483), (9, 2284709), (21, 979161), (63, 326387), (71, 289611), (213, 96537), (497, 41373), (639, 32179), (1491, 13791), (4473, 4597)]