20846553

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4019}}^1$

素因数の和:4061

約数の個数: 32

約数和(自身を含む): 36019200

約数和(自身を除く): 15172647

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 4019, 5187, 12057, 28133, 52247, 76361, 84399, 156741, 229083, 365729, 534527, 992693, 1097187, 1603581, 2978079, 6948851, 20846553]

約数ペア:

[(1, 20846553), (3, 6948851), (7, 2978079), (13, 1603581), (19, 1097187), (21, 992693), (39, 534527), (57, 365729), (91, 229083), (133, 156741), (247, 84399), (273, 76361), (399, 52247), (741, 28133), (1729, 12057), (4019, 5187)]