21297081

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 11724999

約数列:

[1, 3, 13, 19, 39, 41, 57, 123, 247, 533, 701, 741, 779, 1599, 2103, 2337, 9113, 10127, 13319, 27339, 28741, 30381, 39957, 86223, 173147, 373633, 519441, 546079, 1120899, 1638237, 7099027, 21297081]

約数ペア:

[(1, 21297081), (3, 7099027), (13, 1638237), (19, 1120899), (39, 546079), (41, 519441), (57, 373633), (123, 173147), (247, 86223), (533, 39957), (701, 30381), (741, 28741), (779, 27339), (1599, 13319), (2103, 10127), (2337, 9113)]