21625084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{2111}}^1$

素因数の和:2325

約数の個数: 24

約数和(自身を含む): 40981248

約数和(自身を除く): 19356164

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 2111, 2561, 4222, 5122, 8444, 10244, 27443, 54886, 109772, 415867, 831734, 1663468, 5406271, 10812542, 21625084]

約数ペア:

[(1, 21625084), (2, 10812542), (4, 5406271), (13, 1663468), (26, 831734), (52, 415867), (197, 109772), (394, 54886), (788, 27443), (2111, 10244), (2561, 8444), (4222, 5122)]