207820019

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 252771840

約数和(自身を除く): 44951821

約数列:

[1, 11, 17, 23, 187, 211, 229, 253, 391, 2321, 2519, 3587, 3893, 4301, 4853, 5267, 39457, 42823, 48319, 53383, 57937, 82501, 89539, 531509, 821423, 907511, 984929, 1111337, 9035653, 12224707, 18892729, 207820019]

約数ペア:

[(1, 207820019), (11, 18892729), (17, 12224707), (23, 9035653), (187, 1111337), (211, 984929), (229, 907511), (253, 821423), (391, 531509), (2321, 89539), (2519, 82501), (3587, 57937), (3893, 53383), (4301, 48319), (4853, 42823), (5267, 39457)]