20816438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 14020042

約数列:

[1, 2, 19, 31, 38, 41, 62, 82, 431, 589, 779, 862, 1178, 1271, 1558, 2542, 8189, 13361, 16378, 17671, 24149, 26722, 35342, 48298, 253859, 335749, 507718, 547801, 671498, 1095602, 10408219, 20816438]

約数ペア:

[(1, 20816438), (2, 10408219), (19, 1095602), (31, 671498), (38, 547801), (41, 507718), (62, 335749), (82, 253859), (431, 48298), (589, 35342), (779, 26722), (862, 24149), (1178, 17671), (1271, 16378), (1558, 13361), (2542, 8189)]