20181097447

素因数分解:

$7^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1\times {\mathrm{1061}}^1$

素因数の和:1531

約数の個数: 32

約数和(自身を含む): 23629415040

約数和(自身を除く): 3448317593

約数列:

[1, 7, 97, 109, 257, 679, 763, 1061, 1799, 7427, 10573, 24929, 28013, 74011, 102917, 115649, 174503, 196091, 272677, 720419, 809543, 1908739, 2717261, 11217953, 19020827, 26449669, 29721793, 78525671, 185147683, 208052551, 2883013921, 20181097447]

約数ペア:

[(1, 20181097447), (7, 2883013921), (97, 208052551), (109, 185147683), (257, 78525671), (679, 29721793), (763, 26449669), (1061, 19020827), (1799, 11217953), (7427, 2717261), (10573, 1908739), (24929, 809543), (28013, 720419), (74011, 272677), (102917, 196091), (115649, 174503)]