20007556

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{1307}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 36257760

約数和(自身を除く): 16250204

約数列:

[1, 2, 4, 43, 86, 89, 172, 178, 356, 1307, 2614, 3827, 5228, 7654, 15308, 56201, 112402, 116323, 224804, 232646, 465292, 5001889, 10003778, 20007556]

約数ペア:

[(1, 20007556), (2, 10003778), (4, 5001889), (43, 465292), (86, 232646), (89, 224804), (172, 116323), (178, 112402), (356, 56201), (1307, 15308), (2614, 7654), (3827, 5228)]