20646616

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3313}}^1$

素因数の和:3379

約数の個数: 32

約数和(自身を含む): 41756400

約数和(自身を除く): 21109784

約数列:

[1, 2, 4, 8, 19, 38, 41, 76, 82, 152, 164, 328, 779, 1558, 3116, 3313, 6232, 6626, 13252, 26504, 62947, 125894, 135833, 251788, 271666, 503576, 543332, 1086664, 2580827, 5161654, 10323308, 20646616]

約数ペア:

[(1, 20646616), (2, 10323308), (4, 5161654), (8, 2580827), (19, 1086664), (38, 543332), (41, 503576), (76, 271666), (82, 251788), (152, 135833), (164, 125894), (328, 62947), (779, 26504), (1558, 13252), (3116, 6626), (3313, 6232)]