20796908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 41717760

約数和(自身を除く): 20920852

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 79, 124, 158, 193, 316, 341, 386, 682, 772, 869, 1364, 1738, 2123, 2449, 3476, 4246, 4898, 5983, 8492, 9796, 11966, 15247, 23932, 26939, 30494, 53878, 60988, 65813, 107756, 131626, 167717, 263252, 335434, 472657, 670868, 945314, 1890628, 5199227, 10398454, 20796908]

約数ペア:

[(1, 20796908), (2, 10398454), (4, 5199227), (11, 1890628), (22, 945314), (31, 670868), (44, 472657), (62, 335434), (79, 263252), (124, 167717), (158, 131626), (193, 107756), (316, 65813), (341, 60988), (386, 53878), (682, 30494), (772, 26939), (869, 23932), (1364, 15247), (1738, 11966), (2123, 9796), (2449, 8492), (3476, 5983), (4246, 4898)]