21167404120

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7249111}}^1$

素因数の和:7249195

約数の個数: 32

約数和(自身を含む): 48279085920

約数和(自身を除く): 27111681800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7249111, 14498222, 28996444, 36245555, 57992888, 72491110, 144982220, 289964440, 529185103, 1058370206, 2116740412, 2645925515, 4233480824, 5291851030, 10583702060, 21167404120]

約数ペア:

[(1, 21167404120), (2, 10583702060), (4, 5291851030), (5, 4233480824), (8, 2645925515), (10, 2116740412), (20, 1058370206), (40, 529185103), (73, 289964440), (146, 144982220), (292, 72491110), (365, 57992888), (584, 36245555), (730, 28996444), (1460, 14498222), (2920, 7249111)]