19976786

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{953}}^1$

素因数の和:1225

約数の個数: 16

約数和(自身を含む): 30772224

約数和(自身を除く): 10795438

約数列:

[1, 2, 47, 94, 223, 446, 953, 1906, 10481, 20962, 44791, 89582, 212519, 425038, 9988393, 19976786]

約数ペア:

[(1, 19976786), (2, 9988393), (47, 425038), (94, 212519), (223, 89582), (446, 44791), (953, 20962), (1906, 10481)]