21011367

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{6491}}^1$

素因数の和:6590

約数の個数: 16

約数和(自身を含む): 30538368

約数和(自身を除く): 9527001

約数列:

[1, 3, 13, 39, 83, 249, 1079, 3237, 6491, 19473, 84383, 253149, 538753, 1616259, 7003789, 21011367]

約数ペア:

[(1, 21011367), (3, 7003789), (13, 1616259), (39, 538753), (83, 253149), (249, 84383), (1079, 19473), (3237, 6491)]