18885783

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 30569472

約数和(自身を除く): 11683689

約数列:

[1, 3, 7, 21, 23, 61, 69, 161, 183, 427, 483, 641, 1281, 1403, 1923, 4209, 4487, 9821, 13461, 14743, 29463, 39101, 44229, 103201, 117303, 273707, 309603, 821121, 899323, 2697969, 6295261, 18885783]

約数ペア:

[(1, 18885783), (3, 6295261), (7, 2697969), (21, 899323), (23, 821121), (61, 309603), (69, 273707), (161, 117303), (183, 103201), (427, 44229), (483, 39101), (641, 29463), (1281, 14743), (1403, 13461), (1923, 9821), (4209, 4487)]