20386808

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{887}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 43876080

約数和(自身を除く): 23489272

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 169, 221, 338, 442, 676, 884, 887, 1352, 1768, 1774, 2873, 3548, 5746, 7096, 11492, 11531, 15079, 22984, 23062, 30158, 46124, 60316, 92248, 120632, 149903, 196027, 299806, 392054, 599612, 784108, 1199224, 1568216, 2548351, 5096702, 10193404, 20386808]

約数ペア:

[(1, 20386808), (2, 10193404), (4, 5096702), (8, 2548351), (13, 1568216), (17, 1199224), (26, 784108), (34, 599612), (52, 392054), (68, 299806), (104, 196027), (136, 149903), (169, 120632), (221, 92248), (338, 60316), (442, 46124), (676, 30158), (884, 23062), (887, 22984), (1352, 15079), (1768, 11531), (1774, 11492), (2873, 7096), (3548, 5746)]