19992276

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3407}}^1$

素因数の和:3580

約数の個数: 36

約数和(自身を含む): 50860992

約数和(自身を除く): 30868716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3407, 5868, 6814, 10221, 13628, 20442, 30663, 40884, 61326, 122652, 555341, 1110682, 1666023, 2221364, 3332046, 4998069, 6664092, 9996138, 19992276]

約数ペア:

[(1, 19992276), (2, 9996138), (3, 6664092), (4, 4998069), (6, 3332046), (9, 2221364), (12, 1666023), (18, 1110682), (36, 555341), (163, 122652), (326, 61326), (489, 40884), (652, 30663), (978, 20442), (1467, 13628), (1956, 10221), (2934, 6814), (3407, 5868)]