19699404879

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{149}}^1\times {\mathrm{7433}}^1$

素因数の和:7621

約数の個数: 72

約数和(自身を含む): 33814292400

約数和(自身を除く): 14114887521

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 149, 231, 363, 447, 539, 847, 1043, 1617, 1639, 2541, 3129, 4917, 5929, 7301, 7433, 11473, 17787, 18029, 21903, 22299, 34419, 52031, 54087, 80311, 81763, 126203, 156093, 240933, 245289, 364217, 378609, 572341, 883421, 899393, 1092651, 1107517, 1717023, 2650263, 2698179, 3322551, 4006387, 6295751, 7752619, 12019161, 12182687, 18887253, 23257857, 36548061, 44070257, 54268333, 85278809, 132210771, 134009557, 162804999, 255836427, 402028671, 596951663, 938066899, 1790854989, 2814200697, 6566468293, 19699404879]

約数ペア:

[(1, 19699404879), (3, 6566468293), (7, 2814200697), (11, 1790854989), (21, 938066899), (33, 596951663), (49, 402028671), (77, 255836427), (121, 162804999), (147, 134009557), (149, 132210771), (231, 85278809), (363, 54268333), (447, 44070257), (539, 36548061), (847, 23257857), (1043, 18887253), (1617, 12182687), (1639, 12019161), (2541, 7752619), (3129, 6295751), (4917, 4006387), (5929, 3322551), (7301, 2698179), (7433, 2650263), (11473, 1717023), (17787, 1107517), (18029, 1092651), (21903, 899393), (22299, 883421), (34419, 572341), (52031, 378609), (54087, 364217), (80311, 245289), (81763, 240933), (126203, 156093)]