15431689

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 20289024

約数和(自身を除く): 4857335

約数列:

[1, 7, 13, 23, 73, 91, 101, 161, 299, 511, 707, 949, 1313, 1679, 2093, 2323, 6643, 7373, 9191, 11753, 16261, 21827, 30199, 51611, 95849, 152789, 169579, 211393, 670943, 1187053, 2204527, 15431689]

約数ペア:

[(1, 15431689), (7, 2204527), (13, 1187053), (23, 670943), (73, 211393), (91, 169579), (101, 152789), (161, 95849), (299, 51611), (511, 30199), (707, 21827), (949, 16261), (1313, 11753), (1679, 9191), (2093, 7373), (2323, 6643)]