21960220

素因数分解:

$2^2\times 5^1\times {\mathrm{983}}^1\times {\mathrm{1117}}^1$

素因数の和:2109

約数の個数: 24

約数和(自身を含む): 46204704

約数和(自身を除く): 24244484

約数列:

[1, 2, 4, 5, 10, 20, 983, 1117, 1966, 2234, 3932, 4468, 4915, 5585, 9830, 11170, 19660, 22340, 1098011, 2196022, 4392044, 5490055, 10980110, 21960220]

約数ペア:

[(1, 21960220), (2, 10980110), (4, 5490055), (5, 4392044), (10, 2196022), (20, 1098011), (983, 22340), (1117, 19660), (1966, 11170), (2234, 9830), (3932, 5585), (4468, 4915)]