1997919

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:89

約数の個数: 48

約数和(自身を含む): 3813120

約数和(自身を除く): 1815201

約数列:

[1, 3, 7, 9, 11, 21, 27, 31, 33, 63, 77, 93, 99, 189, 217, 231, 279, 297, 341, 651, 693, 837, 961, 1023, 1953, 2079, 2387, 2883, 3069, 5859, 6727, 7161, 8649, 9207, 10571, 20181, 21483, 25947, 31713, 60543, 64449, 73997, 95139, 181629, 221991, 285417, 665973, 1997919]

約数ペア:

[(1, 1997919), (3, 665973), (7, 285417), (9, 221991), (11, 181629), (21, 95139), (27, 73997), (31, 64449), (33, 60543), (63, 31713), (77, 25947), (93, 21483), (99, 20181), (189, 10571), (217, 9207), (231, 8649), (279, 7161), (297, 6727), (341, 5859), (651, 3069), (693, 2883), (837, 2387), (961, 2079), (1023, 1953)]