21440056

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12823}}^1$

素因数の和:12859

約数の個数: 32

約数和(自身を含む): 46166400

約数和(自身を除く): 24726344

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12823, 25646, 51292, 102584, 141053, 243637, 282106, 487274, 564212, 974548, 1128424, 1949096, 2680007, 5360014, 10720028, 21440056]

約数ペア:

[(1, 21440056), (2, 10720028), (4, 5360014), (8, 2680007), (11, 1949096), (19, 1128424), (22, 974548), (38, 564212), (44, 487274), (76, 282106), (88, 243637), (152, 141053), (209, 102584), (418, 51292), (836, 25646), (1672, 12823)]