21697808

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1091}}^1$

素因数の和:1223

約数の個数: 40

約数和(自身を含む): 46309536

約数和(自身を除く): 24611728

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 904, 1091, 1243, 1808, 2182, 2486, 4364, 4972, 8728, 9944, 12001, 17456, 19888, 24002, 48004, 96008, 123283, 192016, 246566, 493132, 986264, 1356113, 1972528, 2712226, 5424452, 10848904, 21697808]

約数ペア:

[(1, 21697808), (2, 10848904), (4, 5424452), (8, 2712226), (11, 1972528), (16, 1356113), (22, 986264), (44, 493132), (88, 246566), (113, 192016), (176, 123283), (226, 96008), (452, 48004), (904, 24002), (1091, 19888), (1243, 17456), (1808, 12001), (2182, 9944), (2486, 8728), (4364, 4972)]