18475509

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:561

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9909771

約数列:

[1, 3, 13, 23, 39, 43, 69, 129, 299, 479, 559, 897, 989, 1437, 1677, 2967, 6227, 11017, 12857, 18681, 20597, 33051, 38571, 61791, 143221, 267761, 429663, 473731, 803283, 1421193, 6158503, 18475509]

約数ペア:

[(1, 18475509), (3, 6158503), (13, 1421193), (23, 803283), (39, 473731), (43, 429663), (69, 267761), (129, 143221), (299, 61791), (479, 38571), (559, 33051), (897, 20597), (989, 18681), (1437, 12857), (1677, 11017), (2967, 6227)]