21974001

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{1801}}^1$

素因数の和:1901

約数の個数: 24

約数和(自身を含む): 34511904

約数和(自身を除く): 12537903

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 581, 1743, 1801, 4067, 5403, 12201, 12607, 37821, 88249, 149483, 264747, 448449, 1046381, 3139143, 7324667, 21974001]

約数ペア:

[(1, 21974001), (3, 7324667), (7, 3139143), (21, 1046381), (49, 448449), (83, 264747), (147, 149483), (249, 88249), (581, 37821), (1743, 12607), (1801, 12201), (4067, 5403)]