21717513

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1427}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 33415200

約数和(自身を除く): 11697687

約数列:

[1, 3, 9, 19, 57, 89, 171, 267, 801, 1427, 1691, 4281, 5073, 12843, 15219, 27113, 81339, 127003, 244017, 381009, 1143027, 2413057, 7239171, 21717513]

約数ペア:

[(1, 21717513), (3, 7239171), (9, 2413057), (19, 1143027), (57, 381009), (89, 244017), (171, 127003), (267, 81339), (801, 27113), (1427, 15219), (1691, 12843), (4281, 5073)]