21697352

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{701}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 42077880

約数和(自身を除く): 20380528

約数列:

[1, 2, 4, 8, 53, 73, 106, 146, 212, 292, 424, 584, 701, 1402, 2804, 3869, 5608, 7738, 15476, 30952, 37153, 51173, 74306, 102346, 148612, 204692, 297224, 409384, 2712169, 5424338, 10848676, 21697352]

約数ペア:

[(1, 21697352), (2, 10848676), (4, 5424338), (8, 2712169), (53, 409384), (73, 297224), (106, 204692), (146, 148612), (212, 102346), (292, 74306), (424, 51173), (584, 37153), (701, 30952), (1402, 15476), (2804, 7738), (3869, 5608)]