21005146

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{619}}^1$

素因数の和:706

約数の個数: 24

約数和(自身を含む): 34015680

約数和(自身を除く): 13010534

約数列:

[1, 2, 19, 38, 47, 94, 361, 619, 722, 893, 1238, 1786, 11761, 16967, 23522, 29093, 33934, 58186, 223459, 446918, 552767, 1105534, 10502573, 21005146]

約数ペア:

[(1, 21005146), (2, 10502573), (19, 1105534), (38, 552767), (47, 446918), (94, 223459), (361, 58186), (619, 33934), (722, 29093), (893, 23522), (1238, 16967), (1786, 11761)]