21000835437

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{587}}^1\times {\mathrm{3919}}^1$

素因数の和:4705

約数の個数: 32

約数和(自身を含む): 29872281600

約数和(自身を除く): 8871446163

約数列:

[1, 3, 17, 51, 179, 537, 587, 1761, 3043, 3919, 9129, 9979, 11757, 29937, 66623, 105073, 199869, 315219, 701501, 1786241, 2104503, 2300453, 5358723, 6901359, 11925517, 35776551, 39107701, 117323103, 411781087, 1235343261, 7000278479, 21000835437]

約数ペア:

[(1, 21000835437), (3, 7000278479), (17, 1235343261), (51, 411781087), (179, 117323103), (537, 39107701), (587, 35776551), (1761, 11925517), (3043, 6901359), (3919, 5358723), (9129, 2300453), (9979, 2104503), (11757, 1786241), (29937, 701501), (66623, 315219), (105073, 199869)]