21325733

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 5769307

約数列:

[1, 11, 13, 19, 47, 143, 167, 209, 247, 517, 611, 893, 1837, 2171, 2717, 3173, 6721, 7849, 9823, 11609, 23881, 34903, 41249, 86339, 102037, 127699, 149131, 453739, 1122407, 1640441, 1938703, 21325733]

約数ペア:

[(1, 21325733), (11, 1938703), (13, 1640441), (19, 1122407), (47, 453739), (143, 149131), (167, 127699), (209, 102037), (247, 86339), (517, 41249), (611, 34903), (893, 23881), (1837, 11609), (2171, 9823), (2717, 7849), (3173, 6721)]