21733816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3943}}^1$

素因数の和:4015

約数の個数: 32

約数和(自身を含む): 44724960

約数和(自身を除く): 22991144

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3943, 5512, 7886, 15772, 31544, 51259, 102518, 205036, 208979, 410072, 417958, 835916, 1671832, 2716727, 5433454, 10866908, 21733816]

約数ペア:

[(1, 21733816), (2, 10866908), (4, 5433454), (8, 2716727), (13, 1671832), (26, 835916), (52, 417958), (53, 410072), (104, 208979), (106, 205036), (212, 102518), (424, 51259), (689, 31544), (1378, 15772), (2756, 7886), (3943, 5512)]