19912593

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 29393280

約数和(自身を除く): 9480687

約数列:

[1, 3, 17, 41, 51, 89, 107, 123, 267, 321, 697, 1513, 1819, 2091, 3649, 4387, 4539, 5457, 9523, 10947, 13161, 28569, 62033, 74579, 161891, 186099, 223737, 390443, 485673, 1171329, 6637531, 19912593]

約数ペア:

[(1, 19912593), (3, 6637531), (17, 1171329), (41, 485673), (51, 390443), (89, 223737), (107, 186099), (123, 161891), (267, 74579), (321, 62033), (697, 28569), (1513, 13161), (1819, 10947), (2091, 9523), (3649, 5457), (4387, 4539)]