21742210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1181}}^1$

素因数の和:1458

約数の個数: 32

約数和(自身を含む): 44934912

約数和(自身を除く): 23192702

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 263, 526, 1181, 1315, 1841, 2362, 2630, 3682, 5905, 8267, 9205, 11810, 16534, 18410, 41335, 82670, 310603, 621206, 1553015, 2174221, 3106030, 4348442, 10871105, 21742210]

約数ペア:

[(1, 21742210), (2, 10871105), (5, 4348442), (7, 3106030), (10, 2174221), (14, 1553015), (35, 621206), (70, 310603), (263, 82670), (526, 41335), (1181, 18410), (1315, 16534), (1841, 11810), (2362, 9205), (2630, 8267), (3682, 5905)]