19430847

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 40

約数和(自身を含む): 31258656

約数和(自身を除く): 11827809

約数列:

[1, 3, 9, 17, 27, 51, 81, 103, 137, 153, 309, 411, 459, 927, 1233, 1377, 1751, 2329, 2781, 3699, 5253, 6987, 8343, 11097, 14111, 15759, 20961, 42333, 47277, 62883, 126999, 141831, 188649, 239887, 380997, 719661, 1142991, 2158983, 6476949, 19430847]

約数ペア:

[(1, 19430847), (3, 6476949), (9, 2158983), (17, 1142991), (27, 719661), (51, 380997), (81, 239887), (103, 188649), (137, 141831), (153, 126999), (309, 62883), (411, 47277), (459, 42333), (927, 20961), (1233, 15759), (1377, 14111), (1751, 11097), (2329, 8343), (2781, 6987), (3699, 5253)]