207979149

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{521251}}^1$

素因数の和:521280

約数の個数: 16

約数和(自身を含む): 333601280

約数和(自身を除く): 125622131

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 521251, 1563753, 3648757, 9903769, 10946271, 29711307, 69326383, 207979149]

約数ペア:

[(1, 207979149), (3, 69326383), (7, 29711307), (19, 10946271), (21, 9903769), (57, 3648757), (133, 1563753), (399, 521251)]