21514395

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3359}}^1$

素因数の和:3435

約数の個数: 32

約数和(自身を含む): 39997440

約数和(自身を除く): 18483045

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3359, 6405, 10077, 16795, 23513, 50385, 70539, 117565, 204899, 352695, 614697, 1024495, 1434293, 3073485, 4302879, 7171465, 21514395]

約数ペア:

[(1, 21514395), (3, 7171465), (5, 4302879), (7, 3073485), (15, 1434293), (21, 1024495), (35, 614697), (61, 352695), (105, 204899), (183, 117565), (305, 70539), (427, 50385), (915, 23513), (1281, 16795), (2135, 10077), (3359, 6405)]