199985751

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{311}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 338757120

約数和(自身を除く): 138771369

約数列:

[1, 3, 7, 9, 21, 59, 63, 173, 177, 311, 413, 519, 531, 933, 1211, 1239, 1557, 2177, 2799, 3633, 3717, 6531, 10207, 10899, 18349, 19593, 30621, 53803, 55047, 71449, 91863, 128443, 161409, 165141, 214347, 376621, 385329, 484227, 643041, 1129863, 1155987, 3174377, 3389589, 9523131, 22220639, 28569393, 66661917, 199985751]

約数ペア:

[(1, 199985751), (3, 66661917), (7, 28569393), (9, 22220639), (21, 9523131), (59, 3389589), (63, 3174377), (173, 1155987), (177, 1129863), (311, 643041), (413, 484227), (519, 385329), (531, 376621), (933, 214347), (1211, 165141), (1239, 161409), (1557, 128443), (2177, 91863), (2799, 71449), (3633, 55047), (3717, 53803), (6531, 30621), (10207, 19593), (10899, 18349)]