18338528

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3391}}^1$

素因数の和:3427

約数の個数: 36

約数和(自身を含む): 39106368

約数和(自身を除く): 20767840

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3391, 5408, 6782, 13564, 27128, 44083, 54256, 88166, 108512, 176332, 352664, 573079, 705328, 1146158, 1410656, 2292316, 4584632, 9169264, 18338528]

約数ペア:

[(1, 18338528), (2, 9169264), (4, 4584632), (8, 2292316), (13, 1410656), (16, 1146158), (26, 705328), (32, 573079), (52, 352664), (104, 176332), (169, 108512), (208, 88166), (338, 54256), (416, 44083), (676, 27128), (1352, 13564), (2704, 6782), (3391, 5408)]