19401021

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 28936440

約数和(自身を除く): 9535419

約数列:

[1, 3, 9, 53, 89, 159, 267, 457, 477, 801, 1371, 4113, 4717, 14151, 24221, 40673, 42453, 72663, 122019, 217989, 366057, 2155669, 6467007, 19401021]

約数ペア:

[(1, 19401021), (3, 6467007), (9, 2155669), (53, 366057), (89, 217989), (159, 122019), (267, 72663), (457, 42453), (477, 40673), (801, 24221), (1371, 14151), (4113, 4717)]