21770948

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:584

約数の個数: 36

約数和(自身を含む): 41647620

約数和(自身を除く): 19876672

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 509, 578, 629, 1018, 1156, 1258, 2036, 2516, 8653, 10693, 17306, 18833, 21386, 34612, 37666, 42772, 75332, 147101, 294202, 320161, 588404, 640322, 1280644, 5442737, 10885474, 21770948]

約数ペア:

[(1, 21770948), (2, 10885474), (4, 5442737), (17, 1280644), (34, 640322), (37, 588404), (68, 320161), (74, 294202), (148, 147101), (289, 75332), (509, 42772), (578, 37666), (629, 34612), (1018, 21386), (1156, 18833), (1258, 17306), (2036, 10693), (2516, 8653)]