20841938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 34809600

約数和(自身を除く): 13967662

約数列:

[1, 2, 13, 26, 73, 79, 139, 146, 158, 278, 949, 1027, 1807, 1898, 2054, 3614, 5767, 10147, 10981, 11534, 20294, 21962, 74971, 131911, 142753, 149942, 263822, 285506, 801613, 1603226, 10420969, 20841938]

約数ペア:

[(1, 20841938), (2, 10420969), (13, 1603226), (26, 801613), (73, 285506), (79, 263822), (139, 149942), (146, 142753), (158, 131911), (278, 74971), (949, 21962), (1027, 20294), (1807, 11534), (1898, 10981), (2054, 10147), (3614, 5767)]