19986018

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2879}}^1$

素因数の和:2986

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 23559582

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 89, 178, 267, 534, 1157, 2314, 2879, 3471, 5758, 6942, 8637, 17274, 37427, 74854, 112281, 224562, 256231, 512462, 768693, 1537386, 3331003, 6662006, 9993009, 19986018]

約数ペア:

[(1, 19986018), (2, 9993009), (3, 6662006), (6, 3331003), (13, 1537386), (26, 768693), (39, 512462), (78, 256231), (89, 224562), (178, 112281), (267, 74854), (534, 37427), (1157, 17274), (2314, 8637), (2879, 6942), (3471, 5758)]