209940012

素因数分解:

$2^2\times 3^4\times {\mathrm{647963}}^1$

素因数の和:647979

約数の個数: 30

約数和(自身を含む): 548825508

約数和(自身を除く): 338885496

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 647963, 1295926, 1943889, 2591852, 3887778, 5831667, 7775556, 11663334, 17495001, 23326668, 34990002, 52485003, 69980004, 104970006, 209940012]

約数ペア:

[(1, 209940012), (2, 104970006), (3, 69980004), (4, 52485003), (6, 34990002), (9, 23326668), (12, 17495001), (18, 11663334), (27, 7775556), (36, 5831667), (54, 3887778), (81, 2591852), (108, 1943889), (162, 1295926), (324, 647963)]