18625047

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 31764960

約数和(自身を除く): 13139913

約数列:

[1, 3, 7, 17, 21, 29, 49, 51, 87, 119, 147, 203, 257, 357, 493, 609, 771, 833, 1421, 1479, 1799, 2499, 3451, 4263, 4369, 5397, 7453, 10353, 12593, 13107, 22359, 24157, 30583, 37779, 52171, 72471, 91749, 126701, 156513, 214081, 365197, 380103, 642243, 886907, 1095591, 2660721, 6208349, 18625047]

約数ペア:

[(1, 18625047), (3, 6208349), (7, 2660721), (17, 1095591), (21, 886907), (29, 642243), (49, 380103), (51, 365197), (87, 214081), (119, 156513), (147, 126701), (203, 91749), (257, 72471), (357, 52171), (493, 37779), (609, 30583), (771, 24157), (833, 22359), (1421, 13107), (1479, 12593), (1799, 10353), (2499, 7453), (3451, 5397), (4263, 4369)]