20684072638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{387967}}^1$

素因数の和:388072

約数の個数: 32

約数和(自身を含む): 34637783040

約数和(自身を除く): 13953710402

約数列:

[1, 2, 19, 23, 38, 46, 61, 122, 437, 874, 1159, 1403, 2318, 2806, 26657, 53314, 387967, 775934, 7371373, 8923241, 14742746, 17846482, 23665987, 47331974, 169541579, 339083158, 449653753, 544317701, 899307506, 1088635402, 10342036319, 20684072638]

約数ペア:

[(1, 20684072638), (2, 10342036319), (19, 1088635402), (23, 899307506), (38, 544317701), (46, 449653753), (61, 339083158), (122, 169541579), (437, 47331974), (874, 23665987), (1159, 17846482), (1403, 14742746), (2318, 8923241), (2806, 7371373), (26657, 775934), (53314, 387967)]