21741140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{9973}}^1$

素因数の和:10091

約数の個数: 24

約数和(自身を含む): 46079880

約数和(自身を除く): 24338740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 9973, 19946, 39892, 49865, 99730, 199460, 1087057, 2174114, 4348228, 5435285, 10870570, 21741140]

約数ペア:

[(1, 21741140), (2, 10870570), (4, 5435285), (5, 4348228), (10, 2174114), (20, 1087057), (109, 199460), (218, 99730), (436, 49865), (545, 39892), (1090, 19946), (2180, 9973)]