21081610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4457}}^1$

素因数の和:4518

約数の個数: 32

約数和(自身を含む): 42368832

約数和(自身を除く): 21287222

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4457, 4730, 8914, 22285, 44570, 49027, 98054, 191651, 245135, 383302, 490270, 958255, 1916510, 2108161, 4216322, 10540805, 21081610]

約数ペア:

[(1, 21081610), (2, 10540805), (5, 4216322), (10, 2108161), (11, 1916510), (22, 958255), (43, 490270), (55, 383302), (86, 245135), (110, 191651), (215, 98054), (430, 49027), (473, 44570), (946, 22285), (2365, 8914), (4457, 4730)]