21837130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1987}}^1$

素因数の和:2158

約数の個数: 32

約数和(自身を含む): 45230976

約数和(自身を除く): 23393846

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 1987, 2198, 3974, 5495, 9935, 10990, 13909, 19870, 27818, 69545, 139090, 311959, 623918, 1559795, 2183713, 3119590, 4367426, 10918565, 21837130]

約数ペア:

[(1, 21837130), (2, 10918565), (5, 4367426), (7, 3119590), (10, 2183713), (14, 1559795), (35, 623918), (70, 311959), (157, 139090), (314, 69545), (785, 27818), (1099, 19870), (1570, 13909), (1987, 10990), (2198, 9935), (3974, 5495)]