20954476

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{547}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 37577456

約数和(自身を除く): 16622980

約数列:

[1, 2, 4, 61, 122, 157, 244, 314, 547, 628, 1094, 2188, 9577, 19154, 33367, 38308, 66734, 85879, 133468, 171758, 343516, 5238619, 10477238, 20954476]

約数ペア:

[(1, 20954476), (2, 10477238), (4, 5238619), (61, 343516), (122, 171758), (157, 133468), (244, 85879), (314, 66734), (547, 38308), (628, 33367), (1094, 19154), (2188, 9577)]