20622385

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2053}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 29503656

約数和(自身を除く): 8881271

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 1435, 2009, 2053, 10045, 10265, 14371, 71855, 84173, 100597, 420865, 502985, 589211, 2946055, 4124477, 20622385]

約数ペア:

[(1, 20622385), (5, 4124477), (7, 2946055), (35, 589211), (41, 502985), (49, 420865), (205, 100597), (245, 84173), (287, 71855), (1435, 14371), (2009, 10265), (2053, 10045)]