27985419

素因数分解:

$3^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1$

素因数の和:678

約数の個数: 60

約数和(自身を含む): 53134488

約数和(自身を除く): 25149069

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 147, 189, 231, 297, 441, 539, 567, 641, 693, 891, 1323, 1617, 1923, 2079, 3969, 4487, 4851, 5769, 6237, 7051, 13461, 14553, 17307, 21153, 31409, 40383, 43659, 49357, 51921, 63459, 94227, 121149, 148071, 190377, 282681, 345499, 363447, 444213, 571131, 848043, 1036497, 1332639, 2544129, 3109491, 3997917, 9328473, 27985419]

約数ペア:

[(1, 27985419), (3, 9328473), (7, 3997917), (9, 3109491), (11, 2544129), (21, 1332639), (27, 1036497), (33, 848043), (49, 571131), (63, 444213), (77, 363447), (81, 345499), (99, 282681), (147, 190377), (189, 148071), (231, 121149), (297, 94227), (441, 63459), (539, 51921), (567, 49357), (641, 43659), (693, 40383), (891, 31409), (1323, 21153), (1617, 17307), (1923, 14553), (2079, 13461), (3969, 7051), (4487, 6237), (4851, 5769)]