217938318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{27127}}^1$

素因数の和:27248

約数の個数: 32

約数和(自身を含む): 473980416

約数和(自身を除く): 256042098

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2678, 4017, 8034, 27127, 54254, 81381, 162762, 352651, 705302, 1057953, 2115906, 2794081, 5588162, 8382243, 16764486, 36323053, 72646106, 108969159, 217938318]

約数ペア:

[(1, 217938318), (2, 108969159), (3, 72646106), (6, 36323053), (13, 16764486), (26, 8382243), (39, 5588162), (78, 2794081), (103, 2115906), (206, 1057953), (309, 705302), (618, 352651), (1339, 162762), (2678, 81381), (4017, 54254), (8034, 27127)]