18619926

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 42674688

約数和(自身を除く): 24054762

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 97, 107, 138, 194, 214, 291, 299, 321, 582, 598, 642, 897, 1261, 1391, 1794, 2231, 2461, 2522, 2782, 3783, 4173, 4462, 4922, 6693, 7383, 7566, 8346, 10379, 13386, 14766, 20758, 29003, 31137, 31993, 58006, 62274, 63986, 87009, 95979, 134927, 174018, 191958, 238717, 269854, 404781, 477434, 716151, 809562, 1432302, 3103321, 6206642, 9309963, 18619926]

約数ペア:

[(1, 18619926), (2, 9309963), (3, 6206642), (6, 3103321), (13, 1432302), (23, 809562), (26, 716151), (39, 477434), (46, 404781), (69, 269854), (78, 238717), (97, 191958), (107, 174018), (138, 134927), (194, 95979), (214, 87009), (291, 63986), (299, 62274), (321, 58006), (582, 31993), (598, 31137), (642, 29003), (897, 20758), (1261, 14766), (1391, 13386), (1794, 10379), (2231, 8346), (2461, 7566), (2522, 7383), (2782, 6693), (3783, 4922), (4173, 4462)]