19994754

素因数分解:

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

素因数の和:939

約数の個数: 48

約数和(自身を含む): 45799488

約数和(自身を除く): 25804734

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 289, 442, 578, 663, 867, 887, 1326, 1734, 1774, 2661, 3757, 5322, 7514, 11271, 11531, 15079, 22542, 23062, 30158, 34593, 45237, 69186, 90474, 196027, 256343, 392054, 512686, 588081, 769029, 1176162, 1538058, 3332459, 6664918, 9997377, 19994754]

約数ペア:

[(1, 19994754), (2, 9997377), (3, 6664918), (6, 3332459), (13, 1538058), (17, 1176162), (26, 769029), (34, 588081), (39, 512686), (51, 392054), (78, 256343), (102, 196027), (221, 90474), (289, 69186), (442, 45237), (578, 34593), (663, 30158), (867, 23062), (887, 22542), (1326, 15079), (1734, 11531), (1774, 11271), (2661, 7514), (3757, 5322)]