21681032

素因数分解:

$2^3\times {\mathrm{197}}^1\times {\mathrm{13757}}^1$

素因数の和:13960

約数の個数: 16

約数和(自身を含む): 40861260

約数和(自身を除く): 19180228

約数列:

[1, 2, 4, 8, 197, 394, 788, 1576, 13757, 27514, 55028, 110056, 2710129, 5420258, 10840516, 21681032]

約数ペア:

[(1, 21681032), (2, 10840516), (4, 5420258), (8, 2710129), (197, 110056), (394, 55028), (788, 27514), (1576, 13757)]