203729571

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 321235200

約数和(自身を除く): 117505629

約数列:

[1, 3, 9, 19, 43, 57, 103, 129, 171, 269, 309, 387, 807, 817, 927, 1957, 2421, 2451, 4429, 5111, 5871, 7353, 11567, 13287, 15333, 17613, 27707, 34701, 39861, 45999, 83121, 84151, 104103, 219773, 249363, 252453, 526433, 659319, 757359, 1191401, 1579299, 1977957, 3574203, 4737897, 10722609, 22636619, 67909857, 203729571]

約数ペア:

[(1, 203729571), (3, 67909857), (9, 22636619), (19, 10722609), (43, 4737897), (57, 3574203), (103, 1977957), (129, 1579299), (171, 1191401), (269, 757359), (309, 659319), (387, 526433), (807, 252453), (817, 249363), (927, 219773), (1957, 104103), (2421, 84151), (2451, 83121), (4429, 45999), (5111, 39861), (5871, 34701), (7353, 27707), (11567, 17613), (13287, 15333)]