20757256

素因数分解:

$2^3\times {\mathrm{13}}^3\times {\mathrm{1181}}^1$

素因数の和:1226

約数の個数: 32

約数和(自身を含む): 42197400

約数和(自身を除く): 21440144

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1181, 1352, 2197, 2362, 4394, 4724, 8788, 9448, 15353, 17576, 30706, 61412, 122824, 199589, 399178, 798356, 1596712, 2594657, 5189314, 10378628, 20757256]

約数ペア:

[(1, 20757256), (2, 10378628), (4, 5189314), (8, 2594657), (13, 1596712), (26, 798356), (52, 399178), (104, 199589), (169, 122824), (338, 61412), (676, 30706), (1181, 17576), (1352, 15353), (2197, 9448), (2362, 8788), (4394, 4724)]