20986532

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7727}}^1$

素因数の和:7835

約数の個数: 24

約数和(自身を含む): 42411264

約数和(自身を除く): 21424732

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7727, 15454, 30908, 54089, 108178, 216356, 749519, 1499038, 2998076, 5246633, 10493266, 20986532]

約数ペア:

[(1, 20986532), (2, 10493266), (4, 5246633), (7, 2998076), (14, 1499038), (28, 749519), (97, 216356), (194, 108178), (388, 54089), (679, 30908), (1358, 15454), (2716, 7727)]