21700826

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2803}}^1$

素因数の和:2898

約数の個数: 24

約数和(自身を含む): 38358720

約数和(自身を除く): 16657894

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 2803, 3871, 5606, 7742, 19621, 39242, 137347, 221437, 274694, 442874, 1550059, 3100118, 10850413, 21700826]

約数ペア:

[(1, 21700826), (2, 10850413), (7, 3100118), (14, 1550059), (49, 442874), (79, 274694), (98, 221437), (158, 137347), (553, 39242), (1106, 19621), (2803, 7742), (3871, 5606)]