217724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 24

約数和(自身を含む): 423360

約数和(自身を除く): 205636

約数列:

[1, 2, 4, 13, 26, 52, 53, 79, 106, 158, 212, 316, 689, 1027, 1378, 2054, 2756, 4108, 4187, 8374, 16748, 54431, 108862, 217724]

約数ペア:

[(1, 217724), (2, 108862), (4, 54431), (13, 16748), (26, 8374), (52, 4187), (53, 4108), (79, 2756), (106, 2054), (158, 1378), (212, 1027), (316, 689)]