209921943

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{39511}}^1$

素因数の和:39555

約数の個数: 32

約数和(自身を含む): 364142592

約数和(自身を除く): 154220649

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 5313, 39511, 118533, 276577, 434621, 829731, 908753, 1303863, 2726259, 3042347, 6361271, 9127041, 9996283, 19083813, 29988849, 69973981, 209921943]

約数ペア:

[(1, 209921943), (3, 69973981), (7, 29988849), (11, 19083813), (21, 9996283), (23, 9127041), (33, 6361271), (69, 3042347), (77, 2726259), (161, 1303863), (231, 908753), (253, 829731), (483, 434621), (759, 276577), (1771, 118533), (5313, 39511)]