21442120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76579}}^1$

素因数の和:76597

約数の個数: 32

約数和(自身を含む): 55137600

約数和(自身を除く): 33695480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76579, 153158, 306316, 382895, 536053, 612632, 765790, 1072106, 1531580, 2144212, 2680265, 3063160, 4288424, 5360530, 10721060, 21442120]

約数ペア:

[(1, 21442120), (2, 10721060), (4, 5360530), (5, 4288424), (7, 3063160), (8, 2680265), (10, 2144212), (14, 1531580), (20, 1072106), (28, 765790), (35, 612632), (40, 536053), (56, 382895), (70, 306316), (140, 153158), (280, 76579)]