218309931

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{15823}}^1$

素因数の和:15912

約数の個数: 32

約数和(自身を含む): 374712320

約数和(自身を除く): 156402389

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1533, 1971, 4599, 13797, 15823, 47469, 110761, 142407, 332283, 427221, 996849, 1155079, 2990547, 3465237, 8085553, 10395711, 24256659, 31187133, 72769977, 218309931]

約数ペア:

[(1, 218309931), (3, 72769977), (7, 31187133), (9, 24256659), (21, 10395711), (27, 8085553), (63, 3465237), (73, 2990547), (189, 1155079), (219, 996849), (511, 427221), (657, 332283), (1533, 142407), (1971, 110761), (4599, 47469), (13797, 15823)]