21978018

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53087}}^1$

素因数の和:53118

約数の個数: 24

約数和(自身を含む): 49690368

約数和(自身を除く): 27712350

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 53087, 106174, 159261, 318522, 477783, 955566, 1221001, 2442002, 3663003, 7326006, 10989009, 21978018]

約数ペア:

[(1, 21978018), (2, 10989009), (3, 7326006), (6, 3663003), (9, 2442002), (18, 1221001), (23, 955566), (46, 477783), (69, 318522), (138, 159261), (207, 106174), (414, 53087)]