20103153

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 11507727

約数列:

[1, 3, 7, 21, 71, 97, 139, 213, 291, 417, 497, 679, 973, 1491, 2037, 2919, 6887, 9869, 13483, 20661, 29607, 40449, 48209, 69083, 94381, 144627, 207249, 283143, 957293, 2871879, 6701051, 20103153]

約数ペア:

[(1, 20103153), (3, 6701051), (7, 2871879), (21, 957293), (71, 283143), (97, 207249), (139, 144627), (213, 94381), (291, 69083), (417, 48209), (497, 40449), (679, 29607), (973, 20661), (1491, 13483), (2037, 9869), (2919, 6887)]