208515219

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{42407}}^1$

素因数の和:42570

約数の個数: 16

約数和(自身を含む): 305337600

約数和(自身を除く): 96822381

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4917, 42407, 127221, 466477, 1399431, 6318643, 18955929, 69505073, 208515219]

約数ペア:

[(1, 208515219), (3, 69505073), (11, 18955929), (33, 6318643), (149, 1399431), (447, 466477), (1639, 127221), (4917, 42407)]