21581302

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:532

約数の個数: 24

約数和(自身を含む): 34728912

約数和(自身を除く): 13147610

約数列:

[1, 2, 19, 38, 71, 142, 361, 421, 722, 842, 1349, 2698, 7999, 15998, 25631, 29891, 51262, 59782, 151981, 303962, 567929, 1135858, 10790651, 21581302]

約数ペア:

[(1, 21581302), (2, 10790651), (19, 1135858), (38, 567929), (71, 303962), (142, 151981), (361, 59782), (421, 51262), (722, 29891), (842, 25631), (1349, 15998), (2698, 7999)]