21439030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2129}}^1$

素因数の和:2208

約数の個数: 32

約数和(自身を含む): 41407200

約数和(自身を除く): 19968170

約数列:

[1, 2, 5, 10, 19, 38, 53, 95, 106, 190, 265, 530, 1007, 2014, 2129, 4258, 5035, 10070, 10645, 21290, 40451, 80902, 112837, 202255, 225674, 404510, 564185, 1128370, 2143903, 4287806, 10719515, 21439030]

約数ペア:

[(1, 21439030), (2, 10719515), (5, 4287806), (10, 2143903), (19, 1128370), (38, 564185), (53, 404510), (95, 225674), (106, 202255), (190, 112837), (265, 80902), (530, 40451), (1007, 21290), (2014, 10645), (2129, 10070), (4258, 5035)]