3997917

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 7457472

約数和(自身を除く): 3459555

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 641, 693, 891, 1923, 2079, 4487, 5769, 6237, 7051, 13461, 17307, 21153, 40383, 49357, 51921, 63459, 121149, 148071, 190377, 363447, 444213, 571131, 1332639, 3997917]

約数ペア:

[(1, 3997917), (3, 1332639), (7, 571131), (9, 444213), (11, 363447), (21, 190377), (27, 148071), (33, 121149), (63, 63459), (77, 51921), (81, 49357), (99, 40383), (189, 21153), (231, 17307), (297, 13461), (567, 7051), (641, 6237), (693, 5769), (891, 4487), (1923, 2079)]