20541902

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8081}}^1$

素因数の和:8155

約数の個数: 16

約数和(自身を含む): 32586624

約数和(自身を除く): 12044722

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 8081, 16162, 250511, 331321, 501022, 662642, 10270951, 20541902]

約数ペア:

[(1, 20541902), (2, 10270951), (31, 662642), (41, 501022), (62, 331321), (82, 250511), (1271, 16162), (2542, 8081)]