21017878

素因数分解:

$2^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{3583}}^1$

素因数の和:4011

約数の個数: 16

約数和(自身を含む): 36126720

約数和(自身を除く): 15108842

約数列:

[1, 2, 7, 14, 419, 838, 2933, 3583, 5866, 7166, 25081, 50162, 1501277, 3002554, 10508939, 21017878]

約数ペア:

[(1, 21017878), (2, 10508939), (7, 3002554), (14, 1501277), (419, 50162), (838, 25081), (2933, 7166), (3583, 5866)]