19304901

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 35268480

約数和(自身を除く): 15963579

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 89, 99, 231, 267, 313, 623, 693, 801, 939, 979, 1869, 2191, 2817, 2937, 3443, 5607, 6573, 6853, 8811, 10329, 19719, 20559, 24101, 27857, 30987, 61677, 72303, 83571, 194999, 216909, 250713, 306427, 584997, 919281, 1754991, 2144989, 2757843, 6434967, 19304901]

約数ペア:

[(1, 19304901), (3, 6434967), (7, 2757843), (9, 2144989), (11, 1754991), (21, 919281), (33, 584997), (63, 306427), (77, 250713), (89, 216909), (99, 194999), (231, 83571), (267, 72303), (313, 61677), (623, 30987), (693, 27857), (801, 24101), (939, 20559), (979, 19719), (1869, 10329), (2191, 8811), (2817, 6853), (2937, 6573), (3443, 5607)]