20493172

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5503}}^1$

素因数の和:5540

約数の個数: 36

約数和(自身を含む): 43921920

約数和(自身を除く): 23428748

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5503, 11006, 22012, 38521, 77042, 104557, 154084, 209114, 269647, 418228, 539294, 731899, 1078588, 1463798, 2927596, 5123293, 10246586, 20493172]

約数ペア:

[(1, 20493172), (2, 10246586), (4, 5123293), (7, 2927596), (14, 1463798), (19, 1078588), (28, 731899), (38, 539294), (49, 418228), (76, 269647), (98, 209114), (133, 154084), (196, 104557), (266, 77042), (532, 38521), (931, 22012), (1862, 11006), (3724, 5503)]