21241899

素因数分解:

$3^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{673}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 36234240

約数和(自身を除く): 14992341

約数列:

[1, 3, 7, 9, 21, 27, 63, 167, 189, 501, 673, 1169, 1503, 2019, 3507, 4509, 4711, 6057, 10521, 14133, 18171, 31563, 42399, 112391, 127197, 337173, 786737, 1011519, 2360211, 3034557, 7080633, 21241899]

約数ペア:

[(1, 21241899), (3, 7080633), (7, 3034557), (9, 2360211), (21, 1011519), (27, 786737), (63, 337173), (167, 127197), (189, 112391), (501, 42399), (673, 31563), (1169, 18171), (1503, 14133), (2019, 10521), (3507, 6057), (4509, 4711)]