18942651

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 34157760

約数和(自身を除く): 15215109

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 101, 117, 229, 273, 303, 687, 707, 819, 909, 1313, 1603, 2061, 2121, 2977, 3939, 4809, 6363, 8931, 9191, 11817, 14427, 20839, 23129, 26793, 27573, 62517, 69387, 82719, 161903, 187551, 208161, 300677, 485709, 902031, 1457127, 2104739, 2706093, 6314217, 18942651]

約数ペア:

[(1, 18942651), (3, 6314217), (7, 2706093), (9, 2104739), (13, 1457127), (21, 902031), (39, 485709), (63, 300677), (91, 208161), (101, 187551), (117, 161903), (229, 82719), (273, 69387), (303, 62517), (687, 27573), (707, 26793), (819, 23129), (909, 20839), (1313, 14427), (1603, 11817), (2061, 9191), (2121, 8931), (2977, 6363), (3939, 4809)]