21287774

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{15271}}^1$

素因数の和:15331

約数の個数: 16

約数和(自身を含む): 34636896

約数和(自身を除く): 13349122

約数列:

[1, 2, 17, 34, 41, 82, 697, 1394, 15271, 30542, 259607, 519214, 626111, 1252222, 10643887, 21287774]

約数ペア:

[(1, 21287774), (2, 10643887), (17, 1252222), (34, 626111), (41, 519214), (82, 259607), (697, 30542), (1394, 15271)]