208821855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{23879}}^1$

素因数の和:23951

約数の個数: 32

約数和(自身を含む): 371381760

約数和(自身を除く): 162559905

約数列:

[1, 3, 5, 11, 15, 33, 53, 55, 159, 165, 265, 583, 795, 1749, 2915, 8745, 23879, 71637, 119395, 262669, 358185, 788007, 1265587, 1313345, 3796761, 3940035, 6327935, 13921457, 18983805, 41764371, 69607285, 208821855]

約数ペア:

[(1, 208821855), (3, 69607285), (5, 41764371), (11, 18983805), (15, 13921457), (33, 6327935), (53, 3940035), (55, 3796761), (159, 1313345), (165, 1265587), (265, 788007), (583, 358185), (795, 262669), (1749, 119395), (2915, 71637), (8745, 23879)]