21281890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5153}}^1$

素因数の和:5226

約数の個数: 32

約数和(自身を含む): 44530560

約数和(自身を除く): 23248670

約数列:

[1, 2, 5, 7, 10, 14, 35, 59, 70, 118, 295, 413, 590, 826, 2065, 4130, 5153, 10306, 25765, 36071, 51530, 72142, 180355, 304027, 360710, 608054, 1520135, 2128189, 3040270, 4256378, 10640945, 21281890]

約数ペア:

[(1, 21281890), (2, 10640945), (5, 4256378), (7, 3040270), (10, 2128189), (14, 1520135), (35, 608054), (59, 360710), (70, 304027), (118, 180355), (295, 72142), (413, 51530), (590, 36071), (826, 25765), (2065, 10306), (4130, 5153)]