20979003

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 30965760

約数和(自身を除く): 9986757

約数列:

[1, 3, 17, 41, 51, 79, 123, 127, 237, 381, 697, 1343, 2091, 2159, 3239, 4029, 5207, 6477, 9717, 10033, 15621, 30099, 55063, 88519, 165189, 170561, 265557, 411353, 511683, 1234059, 6993001, 20979003]

約数ペア:

[(1, 20979003), (3, 6993001), (17, 1234059), (41, 511683), (51, 411353), (79, 265557), (123, 170561), (127, 165189), (237, 88519), (381, 55063), (697, 30099), (1343, 15621), (2091, 10033), (2159, 9717), (3239, 6477), (4029, 5207)]