19847828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4957}}^1$

素因数の和:4992

約数の個数: 48

約数和(自身を含む): 46644864

約数和(自身を除く): 26797036

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 4957, 9914, 19828, 34699, 54527, 64441, 69398, 109054, 128882, 138796, 218108, 257764, 381689, 451087, 708851, 763378, 902174, 1417702, 1526756, 1804348, 2835404, 4961957, 9923914, 19847828]

約数ペア:

[(1, 19847828), (2, 9923914), (4, 4961957), (7, 2835404), (11, 1804348), (13, 1526756), (14, 1417702), (22, 902174), (26, 763378), (28, 708851), (44, 451087), (52, 381689), (77, 257764), (91, 218108), (143, 138796), (154, 128882), (182, 109054), (286, 69398), (308, 64441), (364, 54527), (572, 34699), (1001, 19828), (2002, 9914), (4004, 4957)]