217788412

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{3209}}^1$

素因数の和:3298

約数の個数: 36

約数和(自身を含む): 410931360

約数和(自身を除く): 193142948

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 361, 722, 893, 1444, 1786, 3209, 3572, 6418, 12836, 16967, 33934, 60971, 67868, 121942, 150823, 243884, 301646, 603292, 1158449, 2316898, 2865637, 4633796, 5731274, 11462548, 54447103, 108894206, 217788412]

約数ペア:

[(1, 217788412), (2, 108894206), (4, 54447103), (19, 11462548), (38, 5731274), (47, 4633796), (76, 2865637), (94, 2316898), (188, 1158449), (361, 603292), (722, 301646), (893, 243884), (1444, 150823), (1786, 121942), (3209, 67868), (3572, 60971), (6418, 33934), (12836, 16967)]