19991373

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{2087}}^1$

素因数の和:2224

約数の個数: 16

約数和(自身を含む): 27795456

約数和(自身を除く): 7804083

約数列:

[1, 3, 31, 93, 103, 309, 2087, 3193, 6261, 9579, 64697, 194091, 214961, 644883, 6663791, 19991373]

約数ペア:

[(1, 19991373), (3, 6663791), (31, 644883), (93, 214961), (103, 194091), (309, 64697), (2087, 9579), (3193, 6261)]