18004948

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 35562240

約数和(自身を除く): 17557292

約数列:

[1, 2, 4, 13, 26, 47, 52, 53, 94, 106, 139, 188, 212, 278, 556, 611, 689, 1222, 1378, 1807, 2444, 2491, 2756, 3614, 4982, 6533, 7228, 7367, 9964, 13066, 14734, 26132, 29468, 32383, 64766, 84929, 95771, 129532, 169858, 191542, 339716, 346249, 383084, 692498, 1384996, 4501237, 9002474, 18004948]

約数ペア:

[(1, 18004948), (2, 9002474), (4, 4501237), (13, 1384996), (26, 692498), (47, 383084), (52, 346249), (53, 339716), (94, 191542), (106, 169858), (139, 129532), (188, 95771), (212, 84929), (278, 64766), (556, 32383), (611, 29468), (689, 26132), (1222, 14734), (1378, 13066), (1807, 9964), (2444, 7367), (2491, 7228), (2756, 6533), (3614, 4982)]