42947905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8581}}^1$

素因数の和:8617

約数の個数: 32

約数和(自身を含む): 69205248

約数和(自身を除く): 26257343

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 5005, 8581, 42905, 60067, 94391, 111553, 300335, 471955, 557765, 660737, 780871, 1227083, 3303685, 3904355, 6135415, 8589581, 42947905]

約数ペア:

[(1, 42947905), (5, 8589581), (7, 6135415), (11, 3904355), (13, 3303685), (35, 1227083), (55, 780871), (65, 660737), (77, 557765), (91, 471955), (143, 300335), (385, 111553), (455, 94391), (715, 60067), (1001, 42905), (5005, 8581)]