19842921

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1567}}^1$

素因数の和:1650

約数の個数: 32

約数和(自身を含む): 34119680

約数和(自身を除く): 14276759

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1567, 1809, 4221, 4701, 10969, 12663, 14103, 32907, 42309, 98721, 104989, 296163, 314967, 734923, 944901, 2204769, 2834703, 6614307, 19842921]

約数ペア:

[(1, 19842921), (3, 6614307), (7, 2834703), (9, 2204769), (21, 944901), (27, 734923), (63, 314967), (67, 296163), (189, 104989), (201, 98721), (469, 42309), (603, 32907), (1407, 14103), (1567, 12663), (1809, 10969), (4221, 4701)]