21396981903

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{316753}}^1$

素因数の和:316879

約数の個数: 32

約数和(自身を含む): 32841054720

約数和(自身を除く): 11444072817

約数列:

[1, 3, 11, 23, 33, 69, 89, 253, 267, 759, 979, 2047, 2937, 6141, 22517, 67551, 316753, 950259, 3484283, 7285319, 10452849, 21855957, 28191017, 80138509, 84573051, 240415527, 310101187, 648393391, 930303561, 1945180173, 7132327301, 21396981903]

約数ペア:

[(1, 21396981903), (3, 7132327301), (11, 1945180173), (23, 930303561), (33, 648393391), (69, 310101187), (89, 240415527), (253, 84573051), (267, 80138509), (759, 28191017), (979, 21855957), (2047, 10452849), (2937, 7285319), (6141, 3484283), (22517, 950259), (67551, 316753)]