21214672

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28211}}^1$

素因数の和:28266

約数の個数: 20

約数和(自身を含む): 41979456

約数和(自身を除く): 20764784

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28211, 56422, 112844, 225688, 451376, 1325917, 2651834, 5303668, 10607336, 21214672]

約数ペア:

[(1, 21214672), (2, 10607336), (4, 5303668), (8, 2651834), (16, 1325917), (47, 451376), (94, 225688), (188, 112844), (376, 56422), (752, 28211)]