21994929

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{719}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 13947471

約数列:

[1, 3, 9, 11, 27, 33, 99, 103, 297, 309, 719, 927, 1133, 2157, 2781, 3399, 6471, 7909, 10197, 19413, 23727, 30591, 71181, 74057, 213543, 222171, 666513, 814627, 1999539, 2443881, 7331643, 21994929]

約数ペア:

[(1, 21994929), (3, 7331643), (9, 2443881), (11, 1999539), (27, 814627), (33, 666513), (99, 222171), (103, 213543), (297, 74057), (309, 71181), (719, 30591), (927, 23727), (1133, 19413), (2157, 10197), (2781, 7909), (3399, 6471)]