18995504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2917}}^1$

素因数の和:2973

約数の個数: 40

約数和(自身を含む): 41248848

約数和(自身を除く): 22253344

約数列:

[1, 2, 4, 8, 11, 16, 22, 37, 44, 74, 88, 148, 176, 296, 407, 592, 814, 1628, 2917, 3256, 5834, 6512, 11668, 23336, 32087, 46672, 64174, 107929, 128348, 215858, 256696, 431716, 513392, 863432, 1187219, 1726864, 2374438, 4748876, 9497752, 18995504]

約数ペア:

[(1, 18995504), (2, 9497752), (4, 4748876), (8, 2374438), (11, 1726864), (16, 1187219), (22, 863432), (37, 513392), (44, 431716), (74, 256696), (88, 215858), (148, 128348), (176, 107929), (296, 64174), (407, 46672), (592, 32087), (814, 23336), (1628, 11668), (2917, 6512), (3256, 5834)]