21291206

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1931}}^1$

素因数の和:2119

約数の個数: 16

約数和(自身を含む): 33037200

約数和(自身を除く): 11745994

約数列:

[1, 2, 37, 74, 149, 298, 1931, 3862, 5513, 11026, 71447, 142894, 287719, 575438, 10645603, 21291206]

約数ペア:

[(1, 21291206), (2, 10645603), (37, 575438), (74, 287719), (149, 142894), (298, 71447), (1931, 11026), (3862, 5513)]