21407882

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{947}}^1$

素因数の和:1165

約数の個数: 16

約数和(自身を含む): 32762880

約数和(自身を除く): 11354998

約数列:

[1, 2, 89, 127, 178, 254, 947, 1894, 11303, 22606, 84283, 120269, 168566, 240538, 10703941, 21407882]

約数ペア:

[(1, 21407882), (2, 10703941), (89, 240538), (127, 168566), (178, 120269), (254, 84283), (947, 22606), (1894, 11303)]