20872376

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5563}}^1$

素因数の和:5643

約数の個数: 32

約数和(自身を含む): 45402240

約数和(自身を除く): 24529864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5563, 11126, 22252, 38941, 44504, 77882, 155764, 311528, 372721, 745442, 1490884, 2609047, 2981768, 5218094, 10436188, 20872376]

約数ペア:

[(1, 20872376), (2, 10436188), (4, 5218094), (7, 2981768), (8, 2609047), (14, 1490884), (28, 745442), (56, 372721), (67, 311528), (134, 155764), (268, 77882), (469, 44504), (536, 38941), (938, 22252), (1876, 11126), (3752, 5563)]