21225334

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 35580384

約数和(自身を除く): 14355050

約数列:

[1, 2, 13, 26, 53, 73, 106, 146, 211, 422, 689, 949, 1378, 1898, 2743, 3869, 5486, 7738, 11183, 15403, 22366, 30806, 50297, 100594, 145379, 200239, 290758, 400478, 816359, 1632718, 10612667, 21225334]

約数ペア:

[(1, 21225334), (2, 10612667), (13, 1632718), (26, 816359), (53, 400478), (73, 290758), (106, 200239), (146, 145379), (211, 100594), (422, 50297), (689, 30806), (949, 22366), (1378, 15403), (1898, 11183), (2743, 7738), (3869, 5486)]