21849908

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{541}}^1$

素因数の和:1007

約数の個数: 24

約数和(自身を含む): 40064640

約数和(自身を除く): 18214732

約数列:

[1, 2, 4, 23, 46, 92, 439, 541, 878, 1082, 1756, 2164, 10097, 12443, 20194, 24886, 40388, 49772, 237499, 474998, 949996, 5462477, 10924954, 21849908]

約数ペア:

[(1, 21849908), (2, 10924954), (4, 5462477), (23, 949996), (46, 474998), (92, 237499), (439, 49772), (541, 40388), (878, 24886), (1082, 20194), (1756, 12443), (2164, 10097)]