21080241

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3677}}^1$

素因数の和:3710

約数の個数: 36

約数和(自身を含む): 38155572

約数和(自身を除く): 17075331

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 3677, 5733, 11031, 25739, 33093, 47801, 77217, 143403, 180173, 231651, 334607, 430209, 540519, 1003821, 1621557, 2342249, 3011463, 7026747, 21080241]

約数ペア:

[(1, 21080241), (3, 7026747), (7, 3011463), (9, 2342249), (13, 1621557), (21, 1003821), (39, 540519), (49, 430209), (63, 334607), (91, 231651), (117, 180173), (147, 143403), (273, 77217), (441, 47801), (637, 33093), (819, 25739), (1911, 11031), (3677, 5733)]