21689602

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{2731}}^1$

素因数の和:2782

約数の個数: 24

約数和(自身を含む): 37472112

約数和(自身を除く): 15782510

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 2731, 3971, 5462, 7942, 30041, 51889, 60082, 103778, 570779, 985891, 1141558, 1971782, 10844801, 21689602]

約数ペア:

[(1, 21689602), (2, 10844801), (11, 1971782), (19, 1141558), (22, 985891), (38, 570779), (209, 103778), (361, 60082), (418, 51889), (722, 30041), (2731, 7942), (3971, 5462)]