218361339

素因数分解:

$3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3739}}^1$

素因数の和:3861

約数の個数: 40

約数和(自身を含む): 376513280

約数和(自身を除く): 158151941

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 103, 189, 309, 567, 721, 927, 2163, 2781, 3739, 6489, 8343, 11217, 19467, 26173, 33651, 58401, 78519, 100953, 235557, 302859, 385117, 706671, 1155351, 2120013, 2695819, 3466053, 8087457, 10398159, 24262371, 31194477, 72787113, 218361339]

約数ペア:

[(1, 218361339), (3, 72787113), (7, 31194477), (9, 24262371), (21, 10398159), (27, 8087457), (63, 3466053), (81, 2695819), (103, 2120013), (189, 1155351), (309, 706671), (567, 385117), (721, 302859), (927, 235557), (2163, 100953), (2781, 78519), (3739, 58401), (6489, 33651), (8343, 26173), (11217, 19467)]