20436498

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{15991}}^1$

素因数の和:16070

約数の個数: 24

約数和(自身を含む): 44905536

約数和(自身を除く): 24469038

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 15991, 31982, 47973, 95946, 143919, 287838, 1135361, 2270722, 3406083, 6812166, 10218249, 20436498]

約数ペア:

[(1, 20436498), (2, 10218249), (3, 6812166), (6, 3406083), (9, 2270722), (18, 1135361), (71, 287838), (142, 143919), (213, 95946), (426, 47973), (639, 31982), (1278, 15991)]