217439816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{27763}}^1$

素因数の和:27869

約数の個数: 32

約数和(自身を含む): 449776800

約数和(自身を除く): 232336984

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 3916, 7832, 27763, 55526, 111052, 222104, 305393, 610786, 1221572, 2443144, 2470907, 4941814, 9883628, 19767256, 27179977, 54359954, 108719908, 217439816]

約数ペア:

[(1, 217439816), (2, 108719908), (4, 54359954), (8, 27179977), (11, 19767256), (22, 9883628), (44, 4941814), (88, 2470907), (89, 2443144), (178, 1221572), (356, 610786), (712, 305393), (979, 222104), (1958, 111052), (3916, 55526), (7832, 27763)]