199804577

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 243667200

約数和(自身を除く): 43862623

約数列:

[1, 7, 29, 73, 97, 139, 203, 511, 679, 973, 2117, 2813, 4031, 7081, 10147, 13483, 14819, 19691, 28217, 49567, 71029, 94381, 205349, 294263, 391007, 984259, 1437443, 2059841, 2737049, 6889813, 28543511, 199804577]

約数ペア:

[(1, 199804577), (7, 28543511), (29, 6889813), (73, 2737049), (97, 2059841), (139, 1437443), (203, 984259), (511, 391007), (679, 294263), (973, 205349), (2117, 94381), (2813, 71029), (4031, 49567), (7081, 28217), (10147, 19691), (13483, 14819)]