20667669

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10851051

約数列:

[1, 3, 11, 31, 33, 89, 93, 227, 267, 341, 681, 979, 1023, 2497, 2759, 2937, 7037, 7491, 8277, 20203, 21111, 30349, 60609, 77407, 91047, 222233, 232221, 626293, 666699, 1878879, 6889223, 20667669]

約数ペア:

[(1, 20667669), (3, 6889223), (11, 1878879), (31, 666699), (33, 626293), (89, 232221), (93, 222233), (227, 91047), (267, 77407), (341, 60609), (681, 30349), (979, 21111), (1023, 20203), (2497, 8277), (2759, 7491), (2937, 7037)]