21816690

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{103889}}^1$

素因数の和:103906

約数の個数: 32

約数和(自身を含む): 59840640

約数和(自身を除く): 38023950

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 103889, 207778, 311667, 519445, 623334, 727223, 1038890, 1454446, 1558335, 2181669, 3116670, 3636115, 4363338, 7272230, 10908345, 21816690]

約数ペア:

[(1, 21816690), (2, 10908345), (3, 7272230), (5, 4363338), (6, 3636115), (7, 3116670), (10, 2181669), (14, 1558335), (15, 1454446), (21, 1038890), (30, 727223), (35, 623334), (42, 519445), (70, 311667), (105, 207778), (210, 103889)]