21772912208

素因数分解:

$2^4\times {\mathrm{12491}}^1\times {\mathrm{108943}}^1$

素因数の和:121442

約数の個数: 20

約数和(自身を含む): 42188781888

約数和(自身を除く): 20415869680

約数列:

[1, 2, 4, 8, 16, 12491, 24982, 49964, 99928, 108943, 199856, 217886, 435772, 871544, 1743088, 1360807013, 2721614026, 5443228052, 10886456104, 21772912208]

約数ペア:

[(1, 21772912208), (2, 10886456104), (4, 5443228052), (8, 2721614026), (16, 1360807013), (12491, 1743088), (24982, 871544), (49964, 435772), (99928, 217886), (108943, 199856)]