21969460

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9721}}^1$

素因数の和:9843

約数の個数: 24

約数和(自身を含む): 46548936

約数和(自身を除く): 24579476

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9721, 19442, 38884, 48605, 97210, 194420, 1098473, 2196946, 4393892, 5492365, 10984730, 21969460]

約数ペア:

[(1, 21969460), (2, 10984730), (4, 5492365), (5, 4393892), (10, 2196946), (20, 1098473), (113, 194420), (226, 97210), (452, 48605), (565, 38884), (1130, 19442), (2260, 9721)]