21870604

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16619}}^1$

素因数の和:16677

約数の個数: 24

約数和(自身を含む): 44674560

約数和(自身を除く): 22803956

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16619, 33238, 66476, 116333, 232666, 465332, 781093, 1562186, 3124372, 5467651, 10935302, 21870604]

約数ペア:

[(1, 21870604), (2, 10935302), (4, 5467651), (7, 3124372), (14, 1562186), (28, 781093), (47, 465332), (94, 232666), (188, 116333), (329, 66476), (658, 33238), (1316, 16619)]