21820806

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{57727}}^1$

素因数の和:57745

約数の個数: 32

約数和(自身を含む): 55418880

約数和(自身を除く): 33598074

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 57727, 115454, 173181, 346362, 404089, 519543, 808178, 1039086, 1212267, 1558629, 2424534, 3117258, 3636801, 7273602, 10910403, 21820806]

約数ペア:

[(1, 21820806), (2, 10910403), (3, 7273602), (6, 3636801), (7, 3117258), (9, 2424534), (14, 1558629), (18, 1212267), (21, 1039086), (27, 808178), (42, 519543), (54, 404089), (63, 346362), (126, 173181), (189, 115454), (378, 57727)]