20745018

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{54881}}^1$

素因数の和:54899

約数の個数: 32

約数和(自身を含む): 52686720

約数和(自身を除く): 31941702

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 54881, 109762, 164643, 329286, 384167, 493929, 768334, 987858, 1152501, 1481787, 2305002, 2963574, 3457503, 6915006, 10372509, 20745018]

約数ペア:

[(1, 20745018), (2, 10372509), (3, 6915006), (6, 3457503), (7, 2963574), (9, 2305002), (14, 1481787), (18, 1152501), (21, 987858), (27, 768334), (42, 493929), (54, 384167), (63, 329286), (126, 164643), (189, 109762), (378, 54881)]