18691192

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3391}}^1$

素因数の和:3463

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 19774088

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3391, 5512, 6782, 13564, 27128, 44083, 88166, 176332, 179723, 352664, 359446, 718892, 1437784, 2336399, 4672798, 9345596, 18691192]

約数ペア:

[(1, 18691192), (2, 9345596), (4, 4672798), (8, 2336399), (13, 1437784), (26, 718892), (52, 359446), (53, 352664), (104, 179723), (106, 176332), (212, 88166), (424, 44083), (689, 27128), (1378, 13564), (2756, 6782), (3391, 5512)]