21665816

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1613}}^1$

素因数の和:1715

約数の個数: 32

約数和(自身を含む): 42996960

約数和(自身を除く): 21331144

約数列:

[1, 2, 4, 8, 23, 46, 73, 92, 146, 184, 292, 584, 1613, 1679, 3226, 3358, 6452, 6716, 12904, 13432, 37099, 74198, 117749, 148396, 235498, 296792, 470996, 941992, 2708227, 5416454, 10832908, 21665816]

約数ペア:

[(1, 21665816), (2, 10832908), (4, 5416454), (8, 2708227), (23, 941992), (46, 470996), (73, 296792), (92, 235498), (146, 148396), (184, 117749), (292, 74198), (584, 37099), (1613, 13432), (1679, 12904), (3226, 6716), (3358, 6452)]