18981564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2539}}^1$

素因数の和:2642

約数の個数: 48

約数和(自身を含む): 51206400

約数和(自身を除く): 32224836

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 89, 178, 267, 356, 534, 623, 1068, 1246, 1869, 2492, 2539, 3738, 5078, 7476, 7617, 10156, 15234, 17773, 30468, 35546, 53319, 71092, 106638, 213276, 225971, 451942, 677913, 903884, 1355826, 1581797, 2711652, 3163594, 4745391, 6327188, 9490782, 18981564]

約数ペア:

[(1, 18981564), (2, 9490782), (3, 6327188), (4, 4745391), (6, 3163594), (7, 2711652), (12, 1581797), (14, 1355826), (21, 903884), (28, 677913), (42, 451942), (84, 225971), (89, 213276), (178, 106638), (267, 71092), (356, 53319), (534, 35546), (623, 30468), (1068, 17773), (1246, 15234), (1869, 10156), (2492, 7617), (2539, 7476), (3738, 5078)]