20403911

素因数分解:

${\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 22896000

約数和(自身を除く): 2492089

約数列:

[1, 11, 59, 149, 211, 649, 1639, 2321, 8791, 12449, 31439, 96701, 136939, 345829, 1854901, 20403911]

約数ペア:

[(1, 20403911), (11, 1854901), (59, 345829), (149, 136939), (211, 96701), (649, 31439), (1639, 12449), (2321, 8791)]