20663181

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3313}}^1$

素因数の和:3343

約数の個数: 40

約数和(自身を含む): 38495424

約数和(自身を除く): 17832243

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 3313, 6237, 9939, 23191, 29817, 36443, 69573, 89451, 109329, 208719, 255101, 268353, 327987, 626157, 765303, 983961, 1878471, 2295909, 2951883, 6887727, 20663181]

約数ペア:

[(1, 20663181), (3, 6887727), (7, 2951883), (9, 2295909), (11, 1878471), (21, 983961), (27, 765303), (33, 626157), (63, 327987), (77, 268353), (81, 255101), (99, 208719), (189, 109329), (231, 89451), (297, 69573), (567, 36443), (693, 29817), (891, 23191), (2079, 9939), (3313, 6237)]