20791408

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6949}}^1$

素因数の和:6985

約数の個数: 40

約数和(自身を含む): 46537200

約数和(自身を除く): 25745792

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6949, 13898, 27796, 55592, 76439, 111184, 118133, 152878, 236266, 305756, 472532, 611512, 945064, 1223024, 1299463, 1890128, 2598926, 5197852, 10395704, 20791408]

約数ペア:

[(1, 20791408), (2, 10395704), (4, 5197852), (8, 2598926), (11, 1890128), (16, 1299463), (17, 1223024), (22, 945064), (34, 611512), (44, 472532), (68, 305756), (88, 236266), (136, 152878), (176, 118133), (187, 111184), (272, 76439), (374, 55592), (748, 27796), (1496, 13898), (2992, 6949)]